Int. Workshop "Physics and Chemistry of FeAs-based Superconductors"
1st German-Russian workshop on Quantum Ground States
October 27 - 29, 2008
IFW Dresden, Germany
Scope of the workshop
The ongoing search for new superconductors has recently yielded a new family of Fe-based compounds which upon doping exhibit superconducting transition temperatures TC above 50K. In the last weeks and months, tremendous interest raised world-wide to understand the physics and chemistry of this new family of superconductors.
The workshop will be organized with invited and contributed talks and a poster session.
Venue
The workshop will be held at the Leibniz-Institute for Solid State and Materials Research Dresden e.V. (IFW Dresden) located within a scientifically rich environment with a strong focus on magnetism and superconductivity.
How to reach the IFW?
Registration
Workshop fee: 60,- Euro
To register send an e-mail to FeAs-workshop08@ifw-dresden.de
To apply for a talk please submit an abstract till October 1st (Deadline extended!), for a poster contribution till October 15th.
For a number of 11 students from german workgroups, travelling and accommodation can be supported by 200,- and of 50,- per day (up to 3 days), respectively.
Bank account: Dresdner Bank, Account number 0 410 440 701, Bank code 850 800 00, SWIFT (BIC) DRESDEFF850, IBAN DE73 850 800 000 410 440 701, reason for payment: 76018121. Please remit the workshop fee till October 17th.
Accommodation
We recommend ibis hotel Bastei (www.ibishotel.com) in the center of the city. The IFW can be reached by tram within 20 minutes. The invited speakers will stay in this hotel.
Another possibility is the guest house of the TU Dresden (www.tu-dresden.de/gaestehaus/weberplatz). The IFW can be reached by bus within 20 minutes.
An inexpensive alternative is the youth hostel "Rudi Arndt" (www.jh-rudiarndt.de) within 15 minutes walking distance.
Invited Speakers
Dmitri Argyriou
Christian Bernhard
Alexander Boris
Jeroen van den Brink
Pengcheng Dai
Ilya Eremin
Christoph Geibel
Hidenori Hiramatsu
Dirk Johrendt
Jian Lin Luo
Donghui Lu
Hubertus Luetkens
Paul Müller
Yasutomo Uemura
Maria-Roser Valenti
* To be confirmed
+ last minute speakers
Chairs
Bernd Büchner (IFW Dresden)
Alexander Vasiliev (Moscow State University)
Hans-Henning Klauss (TU Dresden)
Organization: Rüdiger Klingeler, Andreas Koitzsch
Preliminary Schedule
Monday
9:00 – 9:45 Registration
9:50 – 10:00 Büchner Workshop opening
10:00 – 10:20 Schultz Directors welcome “Superconductivity research at the IFW”
10:00 – 12:00 Session I : Synthesis
10:20 – 10:50 Geibel “Magnetism, structural distortion and superconductivity in pure and
doped AFe2As2 systems”
10:50 – 11:10 Karpinski “Single crystals of RFeAsO1-xFy (R = Sm, Nd, Gd, La): high
pressure growth, structure and superconducting properties”
11:10 – 11:30 Morozov “Synthesis and properties of single crystalline Li1−xFe1+xAs”
11:30 – 11:50 Wolf “Crystal growth and characterization of 122-FeAs compounds”
11:50 – 12:10 Krellner “CeFePnO (Pn = As, P) single crystals: 4 f and 3d correlations”
12:10 - 13:40 Lunch
13:40 – 15:50 Session II: Magnetism and Spectroscopy
13:40 – 14:10 Uemura “Muon Spin Relaxation Studies of FeAs systems: static magnetism,
superfluid density, and implications ”
14:10 – 14:40 Bernhard “Comparison between the magnetic and electronic properties
of pnictide and cuprate high Tc superconductors”
14:40 – 15:10 Lütkens “Electronic phase diagram of the LaO1-xFxFeAs superconductor: A
muon spin relaxation study”
15:10 – 15:30 Hinkov “Evidence for electronic phase separation in slightly underdoped
Ba1-xKxFe2As2
15:30 – 15:50 Ksenofonotov “Mössbauer and pressure study of iron-based chalcogenide
superconductors”
15:50 – 16:10 Break
16:10 – 18:00 Session III : Synthesis II/Transport
16:10 – 16:40 Johrendt “Superconductivity and crystal chemistry of BaFe2As2 and related
122-materials”
16:40 – 17:10 Hiramatsu “Heteroepitaxial film growth and optoelectrical properties of FeAs-
based layered superconductors”
17:10 – 17:40 Luo “Superconductivity and spin-density-wave instability in Fe(Ni)-based
superconductors”
17:40 – 18:00 Tropeano “Transport properties of SmFeAsO1-xFx from SDW to
superconducting ordering”
18:00 -18:15 Break
18:15 – 20:15 Poster session
Tuesday
9:00 – 10:40 Session IV: Theory
9:00 – 9:30 van den Brink “Heavy anion solvation of polarity fluctuations in Pnictides”
9:30 – 10:00 Eremin “Collective modes and pairing symmetry in Fe-based superconductors“
10:00 – 10:20 Honerkamp “Functional renormalization group study of the iron pnictides”
10:20 – 10:40 Lorenzana “Competing orders in FeAs layers"
10:40 – 11:00 Break
11:00 – 12:30 Session V: Transport II
11:00 – 11:30 Müller “C-axis transport of pnictide single crystals”
11:30 – 11:50 Tomioko “Transport properties of BaNi2P2 single crystals and LnO1-yFeAs
(Ln = La and Nd)”
11:50 – 12:10 Nicklas “Pressure studies on SrFe2As2 and EuFe2As2”
12:10 – 12:30 Fasano “Superconducting gap and dip-hump-like feature in single-crystalline
SmFeAsO0.86-xFx probed by STM “
12:30 – 14:00 Lunch
14:00 – 16:00 Session VI: Magnetism II
14:00 – 14:30 Dai "Recent progress in neutron scattering studies of FeAs based
superconductors".
14:30 – 14:50 Ewings “High energy spin excitations in the parent phase of a pnictide
high temperature superconductor”
14:50 – 15:10 Grafe “NMR studies of superconducting LaO0.9F0.1FeAs”
15:10 – 15:40 Valenti “Proximity of LaOFeAs to a magnetic instability”
15:40 – 16:00 Yaresko “Ab initio study of magnetic interactions in iron pnictides”
16:00 – 16:20 Break
16:20 – 18:00 Session VII: Electrons and lattice
16:20 – 16:50 Argyriou “Lattice instabilities and superconductivity in MFe2As2 (M=Ca,Ba)”
16:50 – 17:10 Boeri “Electron-phonon interaction in Fe-As superconductors”
17:10 – 17:40 Boris “Low-lying electronic excitations and spectral weight transfer in FeAs
superconductors”
17:40 – 18:00 Lemmens “Lattice and electronic anomalies of FeAs pnictides studied by
Raman spectroscopy on single crystals”
18:00 – 18:20 Bianconi “Feshbach resonance and mesoscopic phase separation near a
quantum critical point in multiband FeAs-based superconductors”
20:00 Conference Diner
Wednesday
9:00 – 10:10 Session VIII: Electronic Structure
9:00 – 9:30 Lu “ARPES Study of Iron-based Superconductors”
9:30 – 9:50 Pchelkina ”Electronic Structure of new copper free High-Temperature
Superconductors: ReOFeAs, AFe2As2 and LiFeAs”
9:50 – 10:10 Evtushynsky “ARPES study of the new pnictide superconductors“
10:10 – 10:30 Eschrig “Electronic structure of iron chalcogenides/pnictides”
10:30 – 10:50 Vildosola “Bandwidth and Fermi surface of iron oxypnictides: Covalency and
sensitivity to structural changes”
10:50 – 11:10 Break
11:10 – 12:30 Session IX: Point contact
11:10 – 11:40 Vasiliev “Andreev Spectroscopy of LaO1−xFxFeAs”
11:40 – 12:00 Goll “Probing the superconductive energy gap of the iron pnictide
superconductor (Ba,K)Fe2As2 by point-contact spectroscopy”
12:00 – 12:20 Daghero “Point contact Andreev-reflection spectroscopy in LaFeAsO1-xFx and
SmFeAsO0.8F0.2”
12:20 – 12:30 Concluding remarks
Lunch
End of Workshop