A few recent talks:

Spin Orbital Separation
Resonant Inelastic X-Ray Scattering on Elementary Excitations
Magnetic Iridates
Multiferroics: Hamiltonian Modeling
Itinerant Electrons in Frustrated Magnets

Contributions to international conferences, workshops and schools


-108. 9th international conference on Inelastic X-ray Scattering, Hsinchu, Taiwan (Nov. 22 2015) Magnetic Resonant Inelastic X-ray Scattering - an overview

-107. 5th Annual Niels Bohr International Academy Workshop-School on ESS Science: Condensed Matter Theory and Advanced Software, Copenhagen, Denmark (Nov. 11 2015) Magnetic Resonant Inelastic X-ray Scattering

-106. KITP Blackboard Lunch, Santa Barbara, USA (Sep. 21 2015) Relativistic Motterials

-105. Kai Siegbahn Prize Ceremony, Uppsala, Sweden (Sep. 14 2015) 40 years of Resonant Inelastic X-ray Scattering - accomplishments and remaining challanges

-104. Workshop on Competing Interactions and Colossal Responses in Transition Metal Oxides, Telluride, USA (Jun. 6 2015) Insights into the electronic and magnetic structure of iridates from Resonant Inelastic X-ray Scattering and Quantum Chemistry

-103. Condensed Matter Summer School, Prague, Czech Republic (Jul. 27 2015) Magnetic Resonant Inelastic X-ray Scattering

-102. BIT's 4th Annual World Congress of Advanced Materials, Chongqing, China (May 29 2015) Resonant Inelastic X-ray Scattering on high Tc cuprates and magnetic iridates

-101. V International Symposium on Strong Nonlinear Vibronic and Electronic Interactions in Solids, University of Tartu, Estonia (May 1 2015) Resonant Inelastic X-ray Scattering on high Tc cuprates and magnetic iridates

-100. COST TO-BE Spring Meeting Plenary Presentation, University of Avero, Portugal (Apr. 1 2015) Resonant Inelastic X-ray Scattering on high Tc cuprates and magnetic iridates

-99. APS March Meeting Invited Talk, San Antonio, USA (Mar. 4 2015) The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3

-98. Workshop Magnetism, Bad Metals and Superconductivity: Iron Pnictides and Beyond, KITP Santa Barbara, USA (Oct. 10 2014) Resonant Inelastic X-ray Scattering on high Tc cuprates, iron pnictides and magnetic iridates

-97. (R)IXS workshop at Stanford Institute for Materials and Energy Sciences, Menlo Park, USA (Sep. 23 2014) Resonant Inelastic X-ray Scattering on magnetic iridates compared to Quantum Chemistry calculations

-96. International Workshop on Mott physics beyond the Heisenberg model, Oxford, UK (Sep. 18 2014) Workshop Summary and Outlook

-95. International Workshop on Mott physics beyond the Heisenberg model, Oxford, UK (Sep. 17 2014) Resonant Inelastic X-ray Scattering on magnetic iridates compared to Quantum Chemistry calculations

-94. Workshop on Quantum Spin Dynamics, Dresden, Germany (Sep. 3 2014) Quantum Spin Dynamics probed by Resonant Inelastic X-ray Scattering

-93. PSI Summer School on Condensed Matter Research, Zugerberg, Switzerland (Aug. 15 2014) Resonant Inelastic X-ray Scattering on Elementary Excitations

-92. 32nd International Conference on the Physics of Semiconductors, Austin, USA (Aug. 12 2014) Resonant Inelastic X-ray Scattering on High Tc Cuprates & Magnetic Iridates

-91. Beijing International Workshop (II) on Iron-Based Superconductors, Chinese Academy of Sciences, Beijing, China (Aug. 7 2014) Resonant Inelastic X-ray Scattering on Correlated Magnets

-90. Moscow International Symposium on Magnetism, Moscow, Russia (July 1 2014) Resonant Inelastic X-ray Scattering on High Tc Cuprates and Magnetic Iridates

-89. Workshop Quantum Phenomena in Strongly Correlated Electrons, Cracow, Poland (June 16 2014) The light that Resonant Inelastic X-ray Scattering sheds on Spin and Orbital Excitations

-88. Gordon Godfrey Workshop on Spins and Strong Correlations, Sydney, Australia (Nov. 25 2013) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

-87. Joint IMPRS/SFB Workshop on Nanoscience, Halle, Germany (Oct. 2 2013) Topological electronic states in itinerant magnets

-86. Workshop on Advances in Quantum Magnets - Dynamics, Kolymbari, Greece (Sep. 12 2013) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

-85. Italian National Conference on Condensed Matter Physics, Milan, Italy (Sep. 9 2013) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

-84. Joint European Magnetic Symposia, Rhodos, Greece (Aug. 29 2013) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

-83. 8th International Conference on Inelastic X-Ray Scattering - IXS 2013, Stanford, USA (Aug. 12 2013) Resonant Inelastic X-ray Scattering on high Tc cuprates and magnetic iridates

-82. Workshop on superconductivity research advanced by new materials and spectroscopies, IMR, Sendai, Japan (Jul. 24 2013) The light that resonant inelastic X-ray scattering sheds on high Tc cuprates and magnetic iridates

-81. Condensed Matter Physics in the City, London, UK (Jun. 24 2013) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

-80. Future challenges for the theory of x-ray spectroscopy workshop, Diamond Light Source, Oxfordshire, UK (April 11 2013) Challenges for the theory of Resonant Inelastic X-ray Scattering

-79. Heraeus-Seminar on Functional Magnetic Nanomembranes, Bad Honnef, Germany (March 5 2013), Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

-78. Workshop on Fundamental Aspects of X-ray Spectroscopies: the role of the 2p core hole in XAS and RIXS, Utrecht, The Netherlands (Feb. 22 2013) Resonant Inelastic X-ray Scattering on elementary excitations in iridates and cuprates

-77. International Workshop on Mott physics beyond the Heisenberg model, Lausanne, Switzerland (June 27 2012) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

-76. Workshop on Spin-Orbital Systems, Max Planck Institute PKS, Dresden, Germany (May 4 2012) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

-75. Hereaeus Multiferroics Workshop, Bad Honnef, Germany (Apr. 23 2012) Multiferroicity due to Charge Ordering

-74. Workshop on Spin-Texture Magnets, Max Planck Institute PKS, Dresden, Germany (Apr. 3 2012) Itinerant Electrons in Frustrated Magnets: emerging chiral insulators, macroscopic degeneracies and [Fractional] Quantum Hall liquids

-73. APS March Meeting Invited Talk, Boston, USA (Mar. 3 2012) Multiferroicity due to Charge Ordering

-72. ESS Science Symposium on Spin Dynamics of Correlated Electron Systems, Abingdon, UK (Feb. 24 2012) Magnetic excitations of iridates and cuprates probed by Resonant Inelastic X-ray Scattering

-71. Strongly Correlated Electron Systems SCES2011, Cambridge, UK (Aug. 31 2011) Magnetic excitations of iridates and cuprates probed by Resonant Inelastic X-ray Scattering

-70. ICAM summerschool on Multiband and Multiorbital Effects in Novel Materials (Aug. 2,3 and 4) Orbital degrees of freedom in strongly correlated transition metal compounds, part I, II and III

-69. Korrelationstage 2011, Dresden, Germany (Mar. 1 2011) The light that Resonant Inelastic X-ray Scattering sheds on High Tc Cuprates

-68. ESRF User Meeting, Grenoble, France (Feb. 8 2011) Multiferroicity due to Charge Ordering

-67. KITP miniprogram on iron-superconductors (Jan. 12 2011) Importance of orbital degrees of freedom and evidence for triplet superconductivity in LiFeAs

-66. Seventh International conference on Inelastic X-ray Scattering Grenoble, France (Oct. 11 2010) Elementary Magnetic Excitations probed by Resonant Inelastic X-ray Scattering

-65. European School on Multiferroics, L'Aquila, Italy (Sept. 28 2010) Multiferroics: Model Hamiltonian approaches

-64. International SFB workshop Strongly Correlated Transition Compounds, Bergisch Gladbach, Germany (Sept. 10 2010) Elementary Magnetic Excitations Probed by RIXS

-63. International Conference on "Superconductivity and Magnetism: Hybrid proximity nanostructures and intrinsic phenomena, Peastum, Italy (Sept. 6 2010) Magnetic Excitations Probed by RIXS

-62. General Conference of the European Physical Society, Condensed Matter Division, Warsaw, Poland (Aug. 31 2010) Elementary Magnetic Excitations Probed by RIXS

-61. 1st Summer School on X-ray Science, Sun-Moon Lake, Taiwain (Aug. 2 2010) Resonant Inelastic X-ray Scattering

-60. VUV/X Satellite Meeting on RIXS, Saskatoon, Canada (Jul. 9 2010) Elementary Magnetic Excitations Probed by RIXS

-59. Meeting of the Swiss Physical Society, Basel, Switzerland (Jun. 21 2010) Resonant x-rays on Correlated Matter

-58. CIMTEC 2010, 5th Forum on New Materials, Montecatini Terme, Italy (Jun. 10 2010) Multiferroicity due to Charge Ordering

-57. Edgar Luescher Seminar, Klosters, Switzerland (Feb. 7 2010) The Role of Correlations in Iron Pnictide Superconductors

-56. FOM Meeting, Iron Pnictide Focus Session, Veldhoven, NL (Jan. 19 2010) Iron superconductors: Breaking the high Tc rules

-55. RIXS Coordination Meeting, Stanford, USA (Nov. 12 2009) CMSN activities of cluster group

-54. Workshop on Soft X-ray scattering, NSRRC, Hsinchu, Taiwan (Oct. 12 2009) The light that Resonant Inelastic X-ray Scattering throws on High Tc Cuprates

-53. Workshop on Resonant Inelastic X-ray Scattering, Stanford Linear Accelerator Laboratory, USA (Aug. 3 2009) The light that Resonant Inelastic X-ray Scattering throws on High Tc Cuprates

-52. Resonant Inelastic X-ray Scattering Workshop, ESRF Grenoble, France (June 30 2009) Magnons, bi-magnons and orbitons in RIXS

-51. DPG March Meeting, Dresden, Germany (March 25 2009) Exotic properties of graphene at interfaces: spin filtering and mass generation

-50. International Conference on "FeAs High Tc Superconducting Multilayers and Related Phenomena", Rome, Italy (Dec. 2008) Heavy anion solvation of polarity fluctutations in Fe-As pnictides

-49. International Workshop "Physics and Chemistry of FeAs-based Superconductors", Dresden, Germany (Oct. 2008) Heavy anion solvation of polarity fluctutations in Fe-As pnictides

-48. UPBL7 Meeting, ESRF Grenoble (France) (Oct. 2008) Features of RIXS

-47. International Workshop on Electronic Crystals, Cargese, France (Aug. 2008) Charge and Orbital Order in Multiferroic Manganites

-46. Workshop on Quantum Decoherence, Leiden, NL (Aug. 2008) Penrosian Collapse and Decoherence

-45. Workshop Frontiers in Complex Oxides, Santa Barbara, USA (Jul. 2008) Multiferroicity in Charge and Orbital Ordered Materials

-44. International Conference on Low-Energy Electrodynamics, Vancouver, Canada (Jul. 2008) Multiferroicity in Charge and Orbital Ordered Manganites

-43. ESF workshop on Highly Frustrated Magnetism, Cracow, Poland (Jun. 2008) Multiferroicity due to entangled spin, charge and orbital order

-42. Workshop on X-ray Spectroscopies: theory and experiment, Lausanne, Switzerland (Feb. 2008) Theory of magnetic RIXS

-41. Conference on Quantum Materials, Leibniz Institute Dresden, Germany (Dec. 2007) Charge fractionalization at the metal-insulator transition

-40. Motterials Workshop, KITP, Santa Barbara, USA (Sep. 2007) Blackboard seminar on Motterials

-39. Motterials Conference, KITP, Santa Barbara, USA (Sep. 2007) Multiferroicity induced by dislocated spin-density waves

-38. Workshop on Highly Frustrated Magnets, ICTP, Trieste, Italy (Aug. 2007) Frustration in Orbital Models (Lecture Series)

-37. European School on Multiferroics, Grenoble, France (Jul. 2007) New concepts, charge/orbital order in multiferroics

-36. IXS 2007, Osaka, Japan (May 2007) Ultrashort Lifetime Expansion for Indirect Resonant Inelastic X-ray Scattering

-35. CMSN 2007, Argonne National Laboratories, Chicago, USA (May 2007) Ultrashort Lifetime Expansion for Indirect Resonant Inelastic X-ray Scattering

-34. Korrelationstage 2007, Dresden, Germany (Feb. 2007) Spontaneous decoherence in superconducting qubits

-33. Orbital 2006, Berlin, Germany (Oct. 2006) A New Route Towards Multiferroics

-32. International symposium on the Jahn-Teller effect, Trieste, Italy (Aug. 2006) Decisive role of orbital fluctuations for two cooperative Jahn-Teller orderings

-31. International Conference on Magnetism, Kyoto, Japan (Aug. 2006) Limit to manipulation of qubits due to spontaneous symmetry breaking

-30. Ecole Nouveaux Etats Electroniques de la Matiere, Aussois, France (May 2006) Orbital Order and Orbital Excitations in Oxides: recent developments

-29. Gordon Research Conference on Quantum Information Science, Il Ciocco, Italy (May 2006) Limit to quantum coherence due to spontaneous symmetry breaking

-28. Conference on Dynamic Properties of Solids, Cesky Krumlov, Tjechia (Sept. 2005) Magnetism versus ferroelectricity; a new route to combine both

-27. Korrelationstage 2005, Dresden, Germany (Feb. 2005) Limit to quantum coherence due to spontaneous symmetry breaking

-26. Orbital 2004, Berlin, Germany (Oct. 2004) Magnetism versus ferroelectricity; how orbitals combine both

-25. Joint European Magnetic Symposia, Dresden, Germany (Sept. 2004) Orbital-Peierls transition in the spin chains of NaTiSi2O6

-24. 5th International Conference on Inelastic X-ray Scattering, Chicago, USA (Sept. 2004) Theory of resonant inelastic X-ray scattering

-23. Joint European Magnetic Symposia, Dresden, Germany, (Sept. 2004) Orbital-Peierls transition in the spin chains of NTiSi2O6

-22. Molecular Electronics Workshop, Delft, NL, (March 2004), New magnetic phenomena in molecular materials

-21. IXS-CAT Workshop, Argonne National Laboratory (IL), USA (2003) Orbital excitations in oxides

-20. Korrelationstage 2003, Dresden, Germany (2003) Orbital models: exact results and applications

-19. XII workshop on Computational Materials Science, Villasimius, Sardinia, Italy (2002) Ab initio calculation of resonant X-ray scattering in orbital ordered cuprates and manganites

-18. XVI Jahn-Teller conference, Leuven, Belgium (2002) Orbital and lattice excitations of Jahn-Teller distorted LaMnO3

-17. Gordon Research Conference on Correlated Electron Systems, Waterville (ME), USA (2002) Orbital excitations in LaMnO3

-16. International Conference on Frontiers in Condensed Matter Physics, Groningen, NL (2002) Orbitons in LaMnO3

-15. Conference on Strongly Correlated Electron Systems, Ann Arbor (MI), USA (2001) Orbiton-phonon coupling in the localized limit

-14. Workshop on correlated systems, Ringberg, Germany (2000) Photoemission spectra of LaMnO3 controlled by orbital excitations

-13. Workshop on TMR and GMR, Dresden, Germany (2000) A review of theoretical approaches to CMR in manganites

-12. Psi-k 2000 Conference, Schwaebisch Gmuend, Germany (2000) Ab initio calculation of resonant X-ray scattering in Manganites

-11. 18th Conference of the Condensed Matter Division of the EPS, Montreux, Switzerland (2000) Quasiparticles in orbital t-J model Charge and orbital order in half-doped manganites

-10. Workshop on Quantum Magnetism in Novel Materials and Geometries, Santa Barbara, USA (1999) The interplay of orbital, charge and spin degrees of freedom in highly doped manganites

-9. OXSEN Progress Meeting, Groningen, The Netherlands, (1999) Charge and Orbital Order in Half-Doped Manganites

-8. Research School Science and Technology of Magnetic Oxides, La Jolla, USA (1999) Double Exchange via Degenerate Orbitals: magnetic structure of doped manganites

-7. Workshop on quantum effects in magnetic systems, Leiden, The Netherlands (1999) Charge and orbital order in half-doped manganites

-6. Summer Workshop Physics of Manganites, Lansing, USA (1998) Orbital-order and orbital dynamics in insulating manganites

-5. The International Conference on Strongly Correlated Electron Systems, Paris, France (1998) Orbitons in ferromagnetic insulating manganites Quasiparticle broadening in insulating copper oxides

-4. March meeting of the American Physical Society, Los Angeles, USA (1998) Spin and orbital excitations in magnetic insulators with Jahn-Teller ions Non conventional screening in low dimensional and finite size systems

-3. XIIth Winterschool on Electronic Properties of Novel Materials, Kirchberg, Austria (1998) Non conventional screening of the Coulomb interaction is C60 and in Carbon nanotubes

-2. Euroconference on Dynamic Properties in Novel Superconductors, Torino, Italy (1995) New phases in an extended Hubbard model explicitly including atomic polarizabilities

-1. The International Conference on Strongly Correlated Electron Systems, Amsterdam, NL (1995) Influence of screening effects and inter-site Coulomb repulsion on the insulating correlation gap



Invited lectures at universities and other research institutes (2000-present)



\94. Nordita Physics Seminar, Stockholm, Sweden (Dec. 15 2015) Resonant Inelastic X-ray Scattering on high Tc cuprates and magnetic iridates

\93. Leopold Infeld Colloquium, University of Warsaw, Poland (Oct. 22 2015) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\92. Transregio Seminar, University of Augsburg, Germany (Apr. 28 2015) Resonant Inelastic X-ray Scattering on high Tc cuprates and magnetic iridates

\91. Physics Colloquium, University of Toronto, Canada (Feb. 12 2015) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\90. Phsyics Seminar, University of Toronto, Canada (Feb. 12 2015) Resonant Inelastic X-ray Scattering on high Tc cuprates and magnetic iridates

\89. Condensed-Matter Physics and Materials Science Seminar, Brookhaven National Laboratries, Upton, USA (Feb. 9 2015) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\88. Physics Colloquium, University of Duisburg-Essen, Germany (Dec. 10 2014) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\87. Zernike Colloquium, Rijksuniversiteit Groningen, NL (Dec. 4 2014) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\86. 290 K seminar, UC Berkeley, USA (Nov. 3 2014) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\85. Colloquium Diamond Light Source and ISIS, Rutherford Appleton Lab., UK (Sep. 9 2014) Resonant Inelastic X-ray Scattering on high Tc cuprates and magnetic iridates

\84. Physics Colloquium, University of Bremen, Germany (Jan. 9 2014) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\83. Max Planck Institute PKS retreat, Motzensee, Germany (Feb. 11 2014) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\82. Science with Photons Seminar, BESSY, Berlin, Germany (Jan. 15 2013) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\81. Colloquium, Paul Scherrer Institute, Villigen, Switzerland (Nov. 2 2012) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\80. Physics Colloquium, University of Konstanz, Germany (May 29 2012) Spin-orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

\79. Physics Seminar, Lawrence Berkeley Nat. Lab, USA (July 21 2011) Elementary excitations of Iridates and Cuprates probed by Resonant Inelastic X-ray Scattering

\78. Physics Colloquium, University of Bochum, Germany (May 2 2011) The light that Resonant Inelastic X-ray Scattering sheds on High Tc Cuprates

\77. PSI Meeting, Beatenberg, Switzerland (Mar. 3 2011) The light that Resonant Inelastic X-ray Scattering sheds on High Tc Cuprates

\76. UC Berkeley Condensed Matter Seminar 290K, Berkeley, USA (Jan. 24 2011) The light that Resonant Inelastic X-ray Scattering sheds on High Tc Cuprates

\75. Physics Seminar, Argonne Nat. Lab., USA (Jan. 20 2011) The light that Resonant Inelastic X-ray Scattering sheds on High Tc Cuprates

\74. Landau Seminar, Loughborough University, UK (Nov. 24 2010) Exotic properties of graphene at interfaces: spin filtering and mass generation

\73. Physics Seminar, Nat. Synchrotron Radiation Research Center, Hsinchu, Taiwan (Jul. 30 2010) Elementary Magnetic Excitations Probed by RIXS

\72. Physics Seminar, Max Planck Institute Stuttgart (Jun. 30 2010) Resonant x-rays on Correlated Matter

\71. Antrittsvorlesung, TU Dresden, Germany (May 18 2010) Resonant x-rays on Correlated Matter

\70. Physics Colloquium, Dortmund University (May 11 2010) Elementary Excitations probed by Resonant Inelastic X-ray Scattering

\69. Physics Seminar, Rijksuniversiteit Groningen (Apr. 29 2010) Elementary Excitations probed by Resonant Inelastic X-ray Scattering

\68. Theory Colloquium TU Dresden, Germany (Apr. 15 2010) Resonant x-rays on Correlated Matter

\67. Physics Colloquium, Max Planck Research Department for Structural Dynamics, CFEL Hamburg, Germany (Dec. 1 2009) The light that Resonant Inelastic X-ray Scattering throws on High Tc Cuprates

\66. Physics Colloquium, University of Illinois Urbana Champaign, USA (Nov. 6 2009) The light that Resonant Inelastic X-ray Scattering throws on High Tc Cuprates

\65. Physics Colloquium, Technische Universiteit Eindhoven (Sept. 17 2009) Iron superconductors: Breaking the high Tc rules

\64. Seminar, Advanced Light Source, Berkeley, USA (July 8 2009) The light that Resonant Inelastic X-ray Scattering throws on High Tc Cuprates

\63. Physics Seminar, Swiss Light Source, Paul Scherer Institute, Switzerland (July 2 2009) Magnons, bi-magnons and orbitons in RIXS

\62. Physics Colloquium, Stanford University, USA (May 7 2009) The light that Resonant Inelastic X-ray Scattering throws on High Tc Cuprates

\61. Physics Colloquium, Universiteit Utrecht (Jan. 14 2009) Iron superconductors: Breaking the high Tc rules

\60. Physics Colloquium, Universiteit Groningen, NL (Dec 2008) Iron superconductors: Breaking all the rules

\59. Physics Colloquium, Tsing Hua University, Hsinchu, Taiwan (Sept 2008) Mott physics and screening of polarity fluctutations in Fe-As superconductors

\58. Physics Seminar, National Synchrotron Radiation Research Center, Taiwan (Sept 2008) Measuring magnons and orbitons in resonant inelastic X-ray scattering

\57. Physics Seminar, National Synchrotron Radiation Research Center, Taiwan (Sept 2008) Ultrashort lifetime expansion for indirect resonant inelastic X-ray scattering

\56. Colloquium, Academia Sinica, Taipei, Taiwan (Sept 2008) Mott physics and screening of polarity fluctutations in Fe-As superconductors

\55. Physics Colloquium, Forschungszentrum Karlsruhe, Germany (June 2008) Novel routes to multiferroics

\54. Physics Colloquium, University of L'Aquila, Italy (May 2008) Novel routes to multiferroics

\53. Physics Colloquium, University of Groningen, NL (Apr 2008) Multiferroicity in Manganites

\52. Institute Colloquium, Max Planck Institute Complex Systems, Dresden, Germany (Apr 2008) Novel routes to Multiferroics

\51. Physics Colloquium, Politechnico di Milano, Milan, Italy (Mar 2008) Ultrashort lifetime approach of RIXS

\50. Physics Colloquium, University of Augsburg, Germany (Jan 2008) Novel routes to Multiferroics in Manganites

\49. Physics Colloquium, University of British Columbia, Vancouver, Canada (Dec 2007) Theory of Resonant Inelastic Scattering

\48. Physics Cooloquium, Washington University, Saint Louis, USA (Nov 2007) Limit quantum coherence due to spontaneous symmetry breaking

\47. Seminar, Microsoft Station-Q, Santa Barbara, USA (Sep 2007) Limit quantum coherence due to spontaneous symmetry breaking

\46. Physics Seminar, Princeton University, USA (Jun 2007) Limit quantum coherence due to spontaneous symmetry breaking

\45. Physics Colloquium, Northeastern University, Boston, USA (Jun 2007) Theory of Resonant Inelastic Scattering

\44. Physics Seminar, New Jersey Institute of Technology, Newark, USA (Jun 2007) Ultra-short Lifetime Expansion for Indirect Resonant Inelastic X-ray Scattering

\43. Physics Colloquium, Brookhaven National Laboratories, Upton, New York, USA (Jun 2007) Theory of Resonant Inelastic Scattering

\42. Physics Seminar, Technical University Dresden, Germany (Jun 2007) Orbital ordering and multiferroicity in manganites

\41. Physics Seminar, University of Cologne, Germany (Apr 2007) Limit quantum coherence due to spontaneous symmetry breaking

\40. Lectures, African Institute of Mathematical Sciences, Capetown, South Africa (Dec 2006) Symmetry and symmetry breaking in condensed matter systems

\39. Theory Seminar, SSRL, Stanford University, USA (Nov 2006) Ultra-short Lifetime Expansion for Indirect Resonant Inelastic X-ray Scattering

\38. Theory Seminar, Delft University, NL (Jan 2006) Limit to quantum coherence due to spontaneous symmetry breaking

\37. Theory Seminar, University of Amsterdam, NL (Dec 2005) Limit to quantum coherence due to spontaneous symmetry breaking

\36. Seminar, University of Groningen, NL (Aug 2005) A new route towards ferroelectric magnets

\35. Seminar, Argonne National Laboratory, Chicago (IL), USA (July 2005) A new route towards ferroelectric magnets

\34. Theory Colloquium, University of Milan, Italy (June 2005) A new route towards ferroelectric magnets

\33. Van der Waals-Zeeman Colloquium, University of Amsterdam, NL (Oct 2005) Limit to quantum coherence due to spontaneous symmetry breaking

\32. Physics Colloquium, University of Groningen, NL (Sept 2005) Limit to quantum coherence due to spontaneous symmetry breaking

\31. Theory Seminar, Stanford University, (CA), USA (Aug 2005) Limit to quantum coherence due to spontaneous symmetry breaking

\30. Theory Seminar, Argonne National Laboratory, Chicago (IL), USA (July 2005) Limit to quantum coherence due to spontaneous symmetry breaking

\29. Casimir Research School, Egmond, NL (May 2005) Limit to quantum coherence due to spontaneous symmetry breaking

\28. Workshop Trends in Theory, Dalfsen, NL (May 2005) Limit to quantum coherence due to spontaneous symmetry breaking

\27. Theory Seminar, Universtaet Osnabrueck, Osnabrueck, Germany (April 2005) Limit to quantum coherence due to spontaneous symmetry breaking

\26. Seminar, Leibniz-Institut fuer Werkstoffforschung, Dresden, Germany (Jan 2005) Electronic correlations in organic molecular crystals

\25. Theory seminar, University College London, U.K. (Jan 2005) A new route towards ferroelectric magnets

\24. General audience seminar This week's discoveries, Leiden University, NL (Nov 2004) A new method to produce ferroelectric magnets

\23. Theory seminar, University of British Columbia, Vancouver, Canada (Jul 2004) Does spontaneous symmetry breaking cause quantum decoherence

\22. Seminar, University of British Columbia, Vancouver, Canada (Jun 2004) Theory of resonant X-ray scattering

\21. Lecture Series, Jonkerbos Graduate School on Condensed Matter and Statistical Physics, Nijmegen, NL (Apr 2004) Order and elementary excitations in solids

\20. Lecture, FOM Wetenschappelijke Vergadering Statistische Fysica, Lunteren, NL (Jan 2004) Consequences of orbital order for properties of transition metal oxides

\19. Lecture, FOM Wetenschappelijke Vergadering van de Werkgemeenschap voor Gecondenseerde Materie, Veldhoven, NL (Dec 2003) Theory of resonant indirect inelastic X-ray scattering

\18. Theory Seminar, SUNY at Stoney Brook (NY), USA (Aug 2003) On the hidden order and disorder of electronic orbitals in manganites

\17. Theory Seminar, Brookhaven National Laboratory, Upton (NY), USA (Jul 2003) Some consequences of orbital degeneracy in transition metal oxides: orbital order, orbital-Peierls transition and orbital induced ferroelectricity

\16. Seminar, Argonne National Laboratory, Chicago (IL), USA (Jun 2003) On the hidden order and disorder of electronic orbitals in manganites

\15. Theory Seminar, Universiteit Nijmegen, NL (Mar 2003) On the hidden order and disorder of electronic orbitals in manganites

\14. Ehrenfest Colloquium, Universiteit Leiden, NL (Dec 2002) On the hidden order and disorder of electronic orbitals in manganites

\13. Van der Waals-Zeeman Colloquium, Universiteit van Amsterdam, NL (Nov 2002) On the hidden order and disorder of electronic orbitals in manganites

\12. Condensed Matter Theory Seminar, Universiteit Utrecht, NL (Oct 2002) On the hidden order and disorder of electronic orbitals in manganites

\11. Seminar, Brookhaven National Laboratory, Upton (NY), USA (Jul 2002) Orbital excitations

\10. Lecture, Wetenschappelijke Vergadering Gecondenseerde Materie, Veldhoven, NL (Dec 2001) Orbitons in LaMnO3

\9. Physics Colloquium, University of Augsburg, Germany (Dec 2001) Orbital order and orbital excitations in manganites

\8. Physics Colloquium, Universiteit Delft, NL (Nov 2001) Orbital physics of colossal magneto-resistance manganites

\7. Physics Colloquium, University of Aachen, Germany (Nov 2001) Orbital order and orbital excitations in manganites

\6. Theory Seminar, University of Groningen, NL (Nov 2001) Orbital excitations in insulating manganites

\5. Solid State Seminar, University of Cologne, Germany (Oct 2001) Orbital excitations in LaMnO3

\4. Physics Seminar, Universiteit Delft, NL, (May 2001) Colossal magneto-resistance in manganites

\3. Theory Seminar, Max-Planck-Institute Stuttgart, Germany, (May 2000) Theory of orbital order in highly doped manganites

\2. Physics Seminar, University of Stuttgart, Germany, (May 2000) Orbital physics in manganites

\1. Physics Seminar, University of Cologne, Germany, (Jan 2000) Charge and orbital order in half-doped manganites