event photo with many people in the atrium of IFW


Name Aswartham, Dr. Saicharan
Department 1202
Address IFW Dresden
Helmholtzstraße 20
01069 Dresden
Phone Number +49-351-4659-668
Email s.aswartham(at)ifw-dresden.de

Brief Curriculum Vitae

  • Staff scientist, IFW-Dresden, Germany                                                                           Jan’16 – present
  • Postdoctoral fellow, University of Kentucky, Lexington, USA                               Mar’14 – Dec’15
  • Postdoctoral fellow, IFW-Dresden, Germany                                                               Nov’12 – Mar’14
  • Ph.D in Physics, Technische Universität Dresden (IFW), Germany                      Aug’09 – Nov’12

Areas of Interests

Discovery, single crystal growth and characterization of novel quantum materials such as;      

  • Topological materials (such as: Topological insulators, Weyl and Dirac semimetals)
  • Unconventional Superconductors (such as: Fe-based superconductors)
  • 2D - Magnetic van der Waals materials (such as: Transition metal chalcogenides) 
  • Frustrated magnets (such as: Iridates, Ruthenates, Rhodates)

Awards/Prize

  • Young Scientist prize from German Crystal Growth Society (DGKK), Germany 2014

Memberships

  • German Physical Society (DPG)
  • German Crystal growth Society (DGKK)
  • American Physical Society (APS)

Referee

  • Physical Review Letters (PRL)
  • Physical Review B (PRB)
  • Physica C

    List of publications

    Orchid id: https://orcid.org/0000-0001-9006-9797

    Google Scholar: https://scholar.google.com/citations?user=Xgz1RNIAAAAJ&hl=en

    2018

    (65) Alexander Fedorov, Alexander Yaresko, Erik Haubold, Yevhen Kushnirenko, Timur Kim, Bernd Büchner, Saicharan Aswartham, Sabine Wurmehl and Sergey Borisenko “Energy scale of nematic ordering in the parent Fe-based superconductor: BaFe2As2arXiv:1811.02430v2, (2018)

    (64) Philipp Materne, Wenli Bi, Jiyong Zhao, Michael Yu Hu, Maria Lourdes Amigo,  Silvia Seiro, Saicharan Aswartham, Bernd Büchner, and Esen Ercan Alp "Bandwidth controlled insulator-metal transition in BaFe2S3: A Mössbauer study under pressure" arXiv:1810.11269v1 (2018)

    (63)  Y. S. Kushnirenko, D. V. Evtushinsky, T. K. Kim, I.V. Morozov, L. Harnagea, S. Wurmehl, S. Aswartham, A.V. Chubukov, S. V. Borisenko "Superconductivity-induced nematicityarXiv:1810.04446v1 (2018)

    (62) J. Zeisner, A. Alfonsov, S. Selter, S. Aswartham, M.P. Ghimire, M. Richter, J. van den Brink, B. Büchner, and V. Kataev "Magnetic anisotropy and spin-polarized two-dimensional electron gas in the van der Waals ferromagnet Cr2Ge2Te6"  arXiv:1810.02560v1 (2018) 

    (61) L. Wang, S. Sauerland, F. Scaravaggi, R. Kappenberger, S. Aswartham, A. U. B. Wolter, B. Büchner, R. Klingeler “Nematicity and structure in LaFe1-xCoxAsO", preprint (2018)

    (60) Shipulin, Ilya; Richter, Stefan; Hühne, Ruben; Aswartham, Saicharan; Brandt, Mira; Anna Thomas, Aleena “Magnetotransport properties of Ba(Fe1-xNix)2As2 thin films grown by PLD method", Materials Research Express 5,126001, (2018)

    (59) S. Thirupathaiah, D. Efremov, Y. Kushnirenko, E. Haubold, T. K. Kim, B. R. Pienning, I. Morozov, S. Aswartham, B. Büchner, and S. V. Borisenko “Massive Dirac fermions in layered BaZnBi2arXiv:1808.07640, (2018)

    (58) M. Iakovleva, S. Fuchs, A. Alfonsov, H.-J. Grafe, M. Vogl,  S. Aswartham, S. Wurmehl, T. Dey, B. Büchner, E. Vavilova and V. Kataev “Static and dynamic magnetism of Ir-based double perovskites La2BIrO6 (B=Co, Zn) probed by magnetic resonance spectroscopies", Phys. Rev. B. 98, 174401, (2018) 

    (57) Ravi Yadav, Mohamed S. Eldeeb, Rajyavardhan Ray, Saicharan Aswartham, Mihai I. Sturza, Satoshi Nishimoto, Jeroen van den Brink; and Liviu Hozoi “Engineering Kitaev exchange in stacked iridate layers: impact of inter-layer species on in-plane magnetismin reveiw  Chemical Science (2018)

    (56) J. Fink, J. Nayak, E.D.L. Rienks, J. Bannies, S. Wurmehl, S. Aswartham, I. Morozov, R. Kappenberger, A. Rai, M. ElGhazali, L. Craco, C. Felser, and B. Büchner “Evidence of hot and cold spots on the Fermi surface of LiFeAs” arXiv:1807.11220 (2018)

    (55) V. Grinenko, R. Sarkar, K. Kihou, C. H. Lee, I. Morozov, S. Aswartham, B. Büchner, P. Chekhonin, R. Hühne, D. Efremov, S.-L. Drechsler, V.L. Vadimov, M. A. Silaev, P. Volkov, I. Eremin, H. Luetkens AND H.H. Klauss “Emerging superconductivity with broken time reversal symmetry inside a superconducting s-wave state” arXiv:1809.03610 (2018) 

    (54) A. Pukenas, P. Chekhonin, M. Meißner, E. Hieckmann, S. Aswartham, S. Wurmehl, B. Büchner, J. Freudenberger, J. Engelmann, R. Hühne, W. Skrotzki „Direct study of structural phase transformation in single crystalline bulk and thin film BaFe2As2“ preprint (2018)

    (53) Philipp Materne,  Wenli Bi,  Jiyong Zhao, Michael Y. Hu, Rhea Kappenberger, Sabine Wurmehl, Saicharan Aswartham, Bernd Büchner, and E. Ercan Alp „Microscopic phase diagram of LaFeAsO single crystals under pressure“ Phys. Rev. B. 98, 174510, (2018)

    (52) Yu. G. Naidyuk, O. E. Kvitnitskaya, D.L. Bashlakov, S. Aswartham, I. Morozov, I. Chernyavskii, G. Fuchs, and S.-L. Drechsler, R. Hühne, K. Nielsch, B. Büchner and D. Efremov “Surface superconductivity in the Weyl semimetal MoTe2 detected by point contact spectroscopy", 2D Mater. 5. 045014 (2018)

    (51) J. M. Ok, S.-H. Baek, H.-J. Grafe, R. Kappenberger, S. Aswartham, J. S. Kim, D. V. Efremov, Jeroen van den Brink, and B. Büchner “Nematicity and magnetism in LaFeAsO single crystals probed by 75As nuclear magnetic resonancePhys. Rev. B. 97, 180405 (R) (2018)

    (50) Y. S. Kushnirenko, A. V. Fedorov, E. Haubold, S. Thirupathaiah, T. Wolf, S. Aswartham, I. Morozov, T. K. Kim, B. Büchner, and S. V. Borisenko “Three-dimensional superconducting gap in FeSe from angle-resolved photoemission spectroscopyPhys. Rev. B. 97, 180501(R) (2018)

    (49)S. Thirupathaiah, D. Efremov,  Y. Kushnirenko, E. Haubold, T. K. Kim, B. R. Pienning, I. Morozov, S. Aswartham, B. Büchner, and S. V. Borisenko  “Spectroscopic evidence of topological phase transition in 3D Dirac semimetal Cd3(As1−xPx)2Phys. Rev. B. 98, 085145, (2018) 

    (48) A.-S. Pawlik, S. Aswartham, I. Morozov, M. Knupfer, B. Büchner, D. Efremov, and A. Koitzsch “Thickness dependent electronic structure changes of few layer 1T’- MoTe2” Physical Review Materials 2, 104004 (2018)

    (47) Philipp Materne,Wenli Bi, Til Goltz, Johannes Spehling, Esen Ercan Alp, Jiyong Zhao, Michael Yu Hu, Anton Jesche, Christoph Geibel, Rhea Kappenberger, Saicharan Aswartham, Sabine Wurmehl, Bernd Büchner, Dongzhou Zhang, and Hans-Henning Klauss “Equivalence of hydrostatic and chemical pressure? Suppression of the magnetic order in CeFeAsOPhys. Rev. B. 98, 014517 (2018)

    (46) S. Thirupathaiah, Y. Kushnirenko, E. Haubold, A. V. Fedorov, E. D. L. Rienks, T. K. Kim, A. N. Yaresko, C. G. F. Blum, S. Aswartham, B. Büchner, S. V. Borisenko; “Observation of Dirac surface states in the hexagonal PtBi2, a possible origin of the linear magnetoresistance”Phys. Rev. B. 97, 035133, (2018)

    (45) M. Vogl, L. T. Corredor, T. Dey, R. C. Morrow, F. Scaravaggi, A. U. B. Wolter, S. Aswartham, S. Wurmehl, and B. Büchner “Interplay of 3d- and 5d-sublattice magnetism in double perovskite La2Zn1-xCoxIrO6Phys. Rev. B. 97, 035155, (2018)

    (44) S.-L. Drechsler, H. Rosner, V. Grinenko, S. Aswartham, I. Morozov, L. Ming, A. Boltalin, K. Kihou, C.-H. Lee, T.K. Kim, D. Evtushinsky, J.M. Tomczak, S. Johnston, S. Borisenko “Mass enhancements and band shifts in strongly hole overdoped Fe-based pnictide superconductors: KFe2As2 and CsFe2As2J. Supercond. Nov. Magn. doi.org/10.1007/s10948-017-4434-5. (2018)

    (43) Matthew D Watson, Saicharan Aswartham, Luke C Rhodes, Benjamin Parrett, Hideaki Iwasawa, Moritz Hoesch, Igor Morozov, Bernd Büchner, Timur K Kim “Three-dimensional electronic structure of the nematic and antiferromagnetic phases of NaFeAs from detwinned angle-resolved photoemission spectroscopyPhys. Rev. B. 97 , 035134, (2018)

    (42) Rhea Kappenberger, Saicharan Aswartham, Francesco Scaravaggi, Christian GF Blum, Mihai I Sturza, Anja UB Wolter, Sabine Wurmehl, Bernd Büchner;  “Solid state single crystal growth of three-dimensional faceted LaFeAsO
    crystals”
    Journal of Crystal Growth, 483, 9-15, (2018)

    2017

    (41) A. A. Kalenyuk, A. Pagliero, E. A. Borodianskyi, S. Aswartham, S. Wurmehl, B. Büchner, D. A. Chareev, A. A. Kordyuk, and V. M. Krasnov;  “Unusual two-dimensional behavior of iron-based superconductors with low anisotropy”Phys. Rev. B. 96, 134512, (2017)

    (40) D. V. Evtushinsky, A. N. Yaresko, V. B. Zabolotnyy, J. Maletz, T. K. Kim, A. A. Kordyuk, M. S. Viazovska, M. Roslova, I. Morozov, R. Beck, S. Aswartham, L. Harnagea, S. Wurmehl, H. Berger, V. A. Rogalev, V. N. Strocov, T. Wolf, N. D. Zhigadlo, B. Büchner, and S. V. Borisenko; “High-energy electronic interaction in the 3d band of high-temperature iron-based superconductors”Phys. Rev. B.  96, 060501(R), (2017)

    (39) S. Richter, S. Aswartham, A. Pukenas, V. Grinenko, S. Wurmehl, W. Skrotzki, B. Büchner, K. Nielsch, R. Hühne; “Superconductivity in Ni Doped Ba-Fe-As Thin Films Prepared from Single Crystal Targets Using PLD”   IEEE Transactions on Applied Superconductivity Volume: 27, Issue: 4, (2017)

    (38) S. Khim, S. Aswartham, V. Grinenko, D. Efremov, C. G. F. Blum, F. Steckel, D. Gruner, A. U. B. Wolter, S-L. Drechsler, C. Heß, S. Wurmehl, and B. Büchner; “A calorimetric investigation of RbFe2As2 single crystals” Physica Status Solidi B: 254, 1600208 (2017)

    (37) F. Wasser, S. Wurmehl, S. Aswartham, Y. Sidis, J. T. Park, A. Schneidewind, B. Büchner, and M. Braden;  “Spin reorientation transition in Na-doped BaFe2As2 studied by single crystal neutron diffraction“  Physica Status Solidi B: 254, 1600181 (2017)

    (36) A. Athauda, C. Hoffman, Y. Ren, S. Aswartham, J. Terzic, G. Cao, X. Zhu, and D. Louca; “Ferro-lattice-distortions and charge fluctuations in superconducting LaO1−xFxBiS2”;  J. Phys. Soc. Jpn. 86, 054701 (2017)

    2016

    (35) K. Iida, F. Kurth, V. Grinenko, J. Engelmann, M. Langer, P. Pecchio, D. Daghero, R. Gonnelli, R. Hühne, J. Hänisch, S. Aswartham, M. Erbe, I. Mönch, L. Schultz, B. Holzapfel, “Hall plot of Ba(Fe1-xCox)2As2 thin filmsScientific Reports.  6, 28390,(2016)

    (34) S. J. Yuan, K. Butrouna, J. Terzic, H. Zheng, S. Aswartham, L. E. DeLong, P. Schlottmann and G. Cao; “Ground state tuning of metal-insulator transition by compositional variations in BaIr1-xRuxO3Phys. Rev. B. 93, 165136, (2016)

    2015

    (33) J. C. Wang, S. Aswartham, F. Ye, J. Terzic, H. Zheng, D. Haskel, S. Chikara, Y. Choi, P. Schlottmann, S. J. Yuan, and G. Cao; “Decoupling of the Antiferromagnetic and Insulating States in Tb doped Sr2IrO4Phys. Rev. B. 92, 214411, (2015)

    (32) S. J. Yuan, S. Aswartham, J. Terzic, H. Zheng, H. D. Zhao, P. Schlottmann and G. Cao; “From Jeff=1/2 state to p-wave superconductor in single-crystal Sr2Ir1-xRuxO4Phys. Rev. B. 92, 245103, (2015)

    (31) S. J. Yuan, J. Terzic, J. C. Wang, S. Aswartham, W. H. Song, Feng. Ye, and G. Cao; “Evolution of magnetism in single-crystal Ca2Ru1-xIrxO4Phys. Rev. B. 92, 024425, (2015)

    (30) F. Steckel, M. Roslova, R. Beck, I. Morozov, S. Aswartham, D. V. Evtushinsky, Christian. G - F Blum, M. Abdel-Hafiez, D. Bombor, J. Maletz, S. Borisenko, Andrei V . Shevelkov, A.U.B. Wolter-Giraud, C. Hess, S. Wurmehl, B. Büchner; “Crystal growth and electronic phase diagram of 4d doped Na1-xFe1-xRhxAs in comparison with 3d Na1-xFe1-xCoxAs" Phys. Rev. B. 91, 184516, (2015)

    (29) J. Terzic, J. C. Wang, Feng. Ye, W. H. Song, S. J. Yuan, S. Aswartham, R. K. Kaul, L. E. Delong, and G. Cao; “Charge-order dictated magnetic order in dimer chain Iridate Ba5AlIr2O11Phys. Rev. B. 91, 235147 (2015)

    (28) F. Wasser, A. Schneidewind, Y. Sidis, S. Wurmehl, S. Aswartham, B. Büchner, and M. Braden; "Spin reorientation in Ba0.65Na0.35Fe2As2: a polarized inelastic neutron scattering study", Phys. Rev. B. 91. 060505(R) (2015)

    2014

    (27) J. C. Wang, J. Terzic, T. F. Qi, Feng. Ye, S. J. Yuan, S. Aswartham, S. V. Streltsov, D. I. Khomskii, R. K. Kaul, and G. Cao; “Lattice-tuned magnetism of Ru4+(4d4) ions in single crystals of layered honeycomb ruthenates Li2RuO3 and Na2RuO3Phys. Rev. B. 90, 161110(R), (2014)

    (26) H.-J. Grafe, U. Graefe, A.P. Dioguardi, N. J. Curro, S. Aswartham, S. Wurmehl and B. Büchner; “Identical spin fluctuations in Cu and Co doped BaFe2As2 independent of electron doping" Phys. Rev. B. 90, 094519, (2014)

    (25) V. V. Fisun, O. P. Balkashin, O. E. Kvitnitskaya, I. A. Korovkin, N.V. Gamayunova, S. Aswartham, S. Wurmehl, Yu. G. Naidyuk; “Josephson effect and Andreev reflection in Ba1−xNaxFe2As2 (x= 0.25 and 0.35) point contactsFizika Nizkikh Temperatur 40, 1175, (2014)

    (24) V. Grinenko, W. Schottenhamel, A.U.B. Wolter-Giraud, D. Efremov, S.-L. Drechsler, S. Aswartham, M. Kumar, S. Wurmehl, M. Maroslova, I. Morozov,, B. Holzapfel, and B. Büchner, E. Ahrens, S. I. Troyanov, S. Koehler, E. Gati, S. Knoener, N. H. Hoang, M. Lang, F. Ricci, G. Profeta; "Superconducting properties of K1-xNaxFe2As2 under pressure" Phys. Rev. B. 90, 094511, (2014)

    (23) Yu. G. Naidyuk, O. E. Kvitnitskaya, N.V. Gamayunova, L. Boeri, S. Aswartham, S. Wurmehl, B. Büchner, D. Efremov, G. Fuchs, and S.-L. Drechsler “Single 20mev Boson mode in KFe2As2 detected by point contact spectroscopy", Phys. Rev. B. 90, 094505, (2014)

    (22) A. Reifenberger, M. Hempel, P. Vogt, S. Aswartham, M. Abdel-Hafiez, V. Grinenko, S. Wurmehl, S.-L. Drechsler, A. Fleischmann, C. Enss, R. Klingeler; "Specific heat of K0.71Na0.29Fe2As2 at very low temperatures". Journal of Low Temperature Physics, 175, 5-6, (2014)

    (21) Yu. G. Naidyuk, O. E. Kvitnitskaya, S. Aswartham, S. Wurmehl, G. Fuchs, K. Nenkov and B. Büchner; “Exploring Point-contact spectra of Ba1−xNaxFe2As2 in the normal and superconducting state“, Phys. Rev. B. 87, 140512, (2014)

    (20) D. V. Evtushinsky, V. B. Zabolotnyy, T. K. Kim, A. A. Kordyuk, A. N. Yaresko, J. Maletz, S. Aswartham, S. Wurmehl, A. V. Boris, D. L. Sun, C. T. Lin, H. Q. Luo, Z. S. Wang, H. H. Wen, A.Varykhalov, R. Follath, B. Büchner, and S. V. Borisenko; "Strong pairing at iron 3dxz;yz orbital’s in hole-doped BaFe2As2", Phys. Rev. B. 87, 060514, (2014)

    (19) V. Grinenko, S.-L. Drechsler, D. Efremov, S. Aswartham, D. Gruner, M. Maroslova, I. Morozov, A.U.B. Wolter-Giraud, S. Wurmehl, B. Holzapfel, and B. Büchner; "Superconducting specific heat jump ΔC α Tcβ (β=2) K1-xNaxFe2As2, Phys. Rev. B. 87, 060504(R), (2014)

    2013

    (18) Maria V. Roslova, Oleg I. Lebedev, Igor V. Morozov, Saicharan Aswartham, Andrei V. Shevelkov, Sabine Wurmehl, and Bernd Büchner “Diversity of microstructural phenomena in superconducting and non-superconducting RbxFe2-ySe2: A TEM study at the atomic scaleInorganic Chemistry. DOI: 10.1021/ic402710r, (2013)

    (17) G. Prando, R. Giraud, S. Aswartham, M. Abdel-Hafiez, A. U. B. Wolter, S. Wurmehl, and B. Büchner. "Evidence for a vortex glass transition in superconducting Ba(Fe0.9Co0.1)2As2" J. Phys. Condens. Matter, 50, 505701/1-10 (2013)

    (16) A. K. Pramanik, S. Aswartham, A. U. B. Wolter, S. Wurmehl, V. Kataev, and B. Büchner; "Flux dynamics and avalanches in 122 pnictide superconductor Ba0.65Na0.35Fe2As2 single crystals", J. Phys. Condens. Matter, 25, 495701 (9pp), (2013)

    (15) M. Abdel-Hafiez, S. Aswartham, V. Grinenko, I. Morozov, M. Maroslova, O. Vakaliuk, S.-L. Drechsler, S. Johnston , C. Hess, S. Wurmehl, A.U.B. Wolter, B. Büchner, E. L. Green, J. Wosnitza, P. Vogt, A. Reifenberger, and R. Klingeler “Evidence of d-wave superconductivity in K1-xNaxFe2As2 (x = 0 and 0.1) single crystals from Low-T Specific HeatPhys. Rev. B. 87, 180507(R), (2013)

    (14) R. Kraus, V. Bisogni, L. Harnagea, S. Aswartham, S. Wurmehl, B. Büchner, and J. Geck G. Levy, I. Elfimov, and G.A. Sawatzky; ”Observation of charge accumulation and onsite Coulomb repulsion at transition metal impurities in the iron pnictides", Phys. Rev. B. 87, 134516, (2013)

    (13) K. Iida, J. Hänisch, E. Reich, F. Kurth, R. Hühne, L. Schultz, B. Holzapfel, A. Ichinose, M. Hanawa, I. Tsukada, M. Schulze, S. Aswartham, S. Wurmehl, and B. Büchner; “Intrinsic pinning and the critical current scaling of clean epitaxial Fe(Se,Te) thin filmsPhys. Rev. B. 87, 104510, (2013)

    (12) D. V. Evtushinsky, V. B. Zabolotnyy, L. Harnagea, A. N. Yaresko, S. Thirupathaiah, A. A. Kordyuk, J. Maletz, S. Aswartham, S. Wurmehl, E. Rienks, R. Follath, B. Büchner, S. V. Borisenko; “Electronic band structure and momentum dependence of the superconducting gap in (Ca, Na)Fe2As2 from angle-resolved photoemission spectroscopyPhys. Rev. B. 87, 094501, (2013)

    2012

    (11) H. Maeter, H. H. Klauss, J. Knolle, R. Moessner, S. Aswartham, S. Wurmehl, G. Behr, B. Büchner, H. Luetkens, G. Pascua, Z. Shermadini, A. Amato and I. Eremin "Strong Competition of Superconducting and Magnetic Order Parameters in Ba1-xNaxFe2As2" arXiv:1210.6881, (2012)

    (10) S. Aswartham, M. Abdel-Hafiez, M. Kumar, G. Behr, D. Bombor, V. B. Zabolotnyy, A. A. Kordyuk, T. K. Kim, D. V. Evtushinsky, S. V. Borisenko, C. Hess, A.U.B. Wolter , S. Wurmehl and B. Büchner; " Hole-doping in BaFe2As2: The case of Ba1-xNaxFe2As2 single crystals", Phys. Rev. B. 85, 224520, (2012)

    (9) S-H. Baek, H-J. Grafe, F. Hammerath, M. Fuchs, C. Rudisch, L. Harnagea, S. Aswartham, S. Wurmehl, J. van den Brink, and B. Büchner; "75As NMR-NQR study in superconducting LiFeAs"; Eur. Phys. J. B. 85: 159 (2012)

    (8) M. Abdel-Hafiez, S. Aswartham, S. Wurmehl, V. Grinenko, C. Hess, S.-L. Drechsler, S. Johnston, A.U.B. Wolter-Giraud, B. Büchner, H. Rosner, L. Boeri, "Specific heat and upper critical fields in KFe2As2 single crystals"; Phys. Rev. B, 85, 134533,(2012)

    (7) N. Qureshi, P. Steffens, S. Wurmehl, S. Aswartham, B. Büchner, and M. Braden; "Local magnetic anisotropy in BaFe2As2: Apolarized inelastic neutron scattering study", Phys. Rev. B. 86, 060410(R), (2012)

    (6) V. Grinenko, S.-L. Drechsler, M. Abdel-Hafiez, S. Aswartham, A.U.B. Wolter-Giraud, S. Wurmehl, C. Hess, K. Nenkov, G.Fuchs, D. Efremov, B. Holzapfel, J. Van den Brink and B. Büchner; "Disordered magnetism in KFe2As2 single crystals", phys. Stat. Sol. (b), pssc.201200805.R1 (2012)

    2011

    (5) K. Iida, J. Hänisch, M. Schulze, S. Aswartham, S. Wurmehl, B. Büchner, L. Schultz, and B. Holzapfel" Generic Fe buffer layers for Fe-based superconductors: Epitaxial FeSe1-xTex thin films", APL. 99, 202503, (2011)

    (4) S. Aswartham, C. Nacke, G. Friemel, N. Leps, S. Wurmehl, N. Wizent, C. Hess, R. Klingeler, G. Behr, S. Singh and B. Büchner; "Single crystal growth and physical properties of superconducting ferro-pnictides Ba(Fe, Co)2As2 grown using self-flux and Bridgman techniques", J. Cryst. Growth, 314, (2011)

    (3) A.K. Pramanik, M. Abdel-Hafiez, S. Aswartham, A.U.B. Wolter, S. Wurmehl, V. Kataev, B. Büchner; "Multigap superconductivity in single crystals of Ba0.65Na0.35Fe2As2", Phys. Rev. B. 84, 064525.(2011)

    (2) S. Aswartham, G. Behr, L. Harnagea, D. Bombor, A. Bachmann, I. V. Morozov, V. B. Zabolotnyy, A. A. Kordyuk, T. K. Kim, D. V. Evtushinsky, S. V. Borisenko, C. Hess, S. Wurmehl and B. Büchner; "Suppressed superconductivity in charge doped Li(Fe1−xCox)As single crystals", Phys. Rev. B. 84, 054534, (2011)

    2010

    (1) A.K. Pramanik, L. Harnagea, S. Singh, S. Aswartham, G. Behr, S. Wurmehl, C. Hess, R. Klingeler, B. Büchner; "Critical current and vortex dynamics in single crystals of Ca(Fe1-xCox)2As2", Phys. Rev. B. 82, 014503, (2010)