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Regensburg 2013 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 40: Poster Session Correlated Electrons

Mittwoch, 13. März 2013, 15:00–19:00, Poster D

15:00 TT 40.1 NRG calculations for Kondo-type models as a way to characterize the magnetic properties of deposited molecules — •Henning-Timm Langwald and Jürgen Schnack
15:00 TT 40.2 Bosonic NRG using an Optimised Basis Set of Coherent States — •Christian Kleine and Frithjof B. Anders
15:00 TT 40.3 Time Dynamics of the Two-Impurity Kondo Model — •Benedikt Lechtenberg and Frithjof B. Anders
15:00 TT 40.4 Hybrid NRG-DMRG approach to real-time dynamics of quantum impurity systems — •Fabian Güttge and Frithjof B. Anders
15:00 TT 40.5 Real space Correlations of Impurities in a Dissipative Environment — •Etienne Gärtner and Ralf Bulla
15:00 TT 40.6 Towards a Numerical Renormalization Group description of the steady-state nonequilibrium single-impurity Anderson model using Lindblad driving — •Frauke Schwarz, Ireneusz Weymann, Andreas Weichselbaum, and Jan von Delft
15:00 TT 40.7 Conductance scaling in Kondo correlated quantum dots: role of level asymmetry — •Lukas Merker, Theo Costi, Enrique Muñoz, and Stefan Kirchner
15:00 TT 40.8 Kondo regime of the non-equilibrium time evolution of an Anderson quantum dot — •Sebastian Bock, Denes Sexty, and Thomas Gasenzer
15:00 TT 40.9 Spin-boson coupling in continuous-time quantum Monte Carlo — •Junya Otsuki
15:00 TT 40.10 Hybridisierungs-CT-QMC mit großen U — •René John Kerkdyk und Thomas Pruschke
15:00 TT 40.11 π fluxes near the edge of a quantum spin Hall insulator — •Manuel Weber and Fakher F. Assaad
15:00 TT 40.12 Preparation chain of single crystal intermetallic compounds under UHV-compatible conditionsAndreas Bauer, •Georg Benka, Marein Rahn, Frederik Goerg, Christian Franz, and Christian Pfleiderer
15:00 TT 40.13 A pressure study of CePt3B — •Daniela Rauch, Steffen Hartwig, Stefan Süllow, Hiroyuki Hidaka, Seigo Yamazaki, Hiroshi Amitsuka, and Ernst Bauer
15:00 TT 40.14 Momentum dependence of the almost quantum critical spin fluctuations in CeCu2Si2 — •Zita Huesges, Oliver Stockert, Hirale S. Jeevan, Karin Schmalzl, and Frank Steglich
15:00 TT 40.15 Spin-orbit-coupling-induced jeff states in perovskite iridates studied by photoemission spectroscopy — •Atsushi Yamasaki, Ozan Kirilmaz, Michael Sing, Akira Sekiyama, Masaaki Isobe, Shigemasa Suga, and Ralph Claessen
15:00 TT 40.16 Strong Spin-Orbital Coupling and Polarization as origin of the Insulating State in Sr2IrO4 — •Markus Aichhorn, Cyril Martins, Loig Vaugier, and Silke Biermann
15:00 TT 40.17 Preparation of SrIrO3 thin films by using metal-organic aerosol deposition technique — •Sebastian Esser, Melanie Schneider, Vasily Moshnyaga, and Philipp Gegenwart
15:00 TT 40.18 Effect of hydrostatic pressure on Yb(Rh1−x Fex)2 Si2 — •Sebastian-Horst Hübner, Yoshi Tokiwa, Hirale S. Jeevan, Maik Schubert, and Philipp Gegenwart
15:00 TT 40.19 Magnetic cooling through quantum criticality — •Stefan Doerschug, Bernd Wolf, Natalia van Well, Franz Ritter, Robert Schindler, Wolf Assmus, and Michael Lang
15:00 TT 40.20 Candidate for a quantum Griffiths phase in the itinerant ferromagnet Sr1−xCaxRuO3Dirk Fuchs, •Chien-Lung Huang, Markus Wissinger, Rudolf Schneider, Jörg Schmalian, and Hilbert von Löhneysen
15:00 TT 40.21 Field-induced quantum criticality in CeCu6−xAux — •Kai Grube, Sebastian Zaum, Felix Eilers, Diego Zocco, Veronika Fritsch, Roland Schäfer, Oliver Stockert, and Hilbert v. Löhneysen
15:00 TT 40.22 Spin excitations in CePdAl — •S. Woitschach, O. Stockert, A. Wildes, V. Fritsch, H. v. Löhneysen, and F. Steglich
15:00 TT 40.23 A microscopic study of Nb1−yFe2+y — •Daniela Rauch, Mathias Kraken, Jochen Litterst, Stefan Süllow, and F. Malte Grosche
15:00 TT 40.24 Pressure and field tuning in CeAgSb2 and NbFe2 — •Peter Logg, Zhuo Feng, Takao Ebihara, William J Duncan, Andreas Neubauer, Christian Pfleiderer, Hong’En Tan, Sven Friedemann, Patricia Alireza, Swee Goh, and F Malte Grosche
15:00 TT 40.25 Synthesis and characterization of single-layered manganites — •Johannes Engelmayer, Oliver Breunig, Holger Ulbrich, Markus Braden, and Thomas Lorenz
15:00 TT 40.26 Pulsed Laser Induced Charge Carrier Excitation in Pr0,65Ca0,35MnO3 — •Nils Folchert, Stephanie Raabe, and Christian Jooß
15:00 TT 40.27 Spin polarized HSE hybrid functional calculations of VO2 — •Udo Schwingenschlögl, Ricardo Grau-Crespo, and Hao Wang
15:00 TT 40.28 Orbital order and phase transitions in KCrF3 — •Carmine Autieri and Eva Pavarini
15:00 TT 40.29 Vibrational IR-spectroscopy of charge-ordered α-ET2I3 under pressure — •Armin Dengl, Rebecca Beyer, Tomislav Ivek, and Martin Dressel
15:00 TT 40.30 Seebeck measurements on Pt-C FEBID nanostructures — •Heiko Reith, Roland Sachser, Matthias C. Schmitt, Friedemann Voelklein, and Michael Huth
15:00 TT 40.31 Mott correlated states in the underdoped two-dimensional Hubbard model: variational Monte Carlo versus a dynamical cluster approximation — •Luca F. Tocchio, Hunpyo Lee, Harald 0. Jeschke, Roser Valenti, and Claudius Gros
15:00 TT 40.32 Multiplets of the full and simplified Coulomb Hamiltonians in bases of spherical and cubic harmonics — •Hermann Ulm and Erik Koch
15:00 TT 40.33 Ab-initio Hubbard parameters for molecular crystals by a symmetry decomposed Ewald method — •Michael M. E. Baumgärtel and Erik Koch
15:00 TT 40.34 Effective gauge field description for the bilinear-biquadratic spin-one chain — •Shijie Hu, Ari M. Turner, and Frank Pollmann
15:00 TT 40.35 Thermal form factors of the anisotropic Heisenberg chain — •Maxime Dugave and Frank Göhmann
15:00 TT 40.36 Factorisation of correlation functions of the integrable spin-1 Heisenberg chain at finite temperature — •Dominic Nawrath and Andreas Klümper
15:00 TT 40.37 Spin dynamics in Azurite: high-field ESR studies — •M. Ozerov, D. Kamenskyi, J. Wosnitza, H. Engelkamp, F. Wolff-Fabris, S. Francoual, M. Jaime, and S. Zvyagin
15:00 TT 40.38 Exploring the Magnetic Phase Diagram of the Frustrated Chain Cuprate PbCuSO4(OH)2 - Linarite — •M. Schäpers, A. U. B. Wolter, F. Lipps, V. Kataev, S.-L. Drechsler, S. Nishimoto, R. Beyer, M. Uhlarz, J. Wosnitza, B. Willenberg, M. Reehuis, K. C. Rule, B. Ouladdiaf, S. Süllow, and B. Büchner
15:00 TT 40.39 Synthesis and magnetic characterization of Cu3(OH)4SO4 — •Jung Hwan Chun, Joseph M. Law, and Reinhard K. Kremer
15:00 TT 40.40 Magnetic Frustration in a Quantum Spin Chain: The Case of Linarite — •Britta Willenberg, Markus Schäpers, Kirrily Rule, Anja Wolter, Manfred Reehuis, Bachir Ouladdiaf, Hanjo Ryll, Bastian Klemke, Klaus Kiefer, and Stefan Süllow
15:00 TT 40.41 Spin dynamics in swedenborgites — •Stefan Buhrandt
15:00 TT 40.42 Pulsed-field experiments on the quasi-2d antiferromagnet Cs2CuBr4 — •Lars Postulka, Bernd Wolf, Pham Thanh Cong, Natalia van Well, Franz Ritter, Wolf Assmus, and Michael Lang
15:00 TT 40.43 Magnetic susceptibility measurements in the metal-organic spin-dimer system TK91 at very low temperatures — •S. Becker, U. Tutsch, B. Wolf, Y. Tsui, A. Brühl, T. Kretz, H.-W. Lerner, M. Wagner, S. Wessel, T. Saha-Dasgupta, H. Jeschke, R. Valentí, and M. Lang
15:00 TT 40.44 Local probe studies (ESR and NMR) on the BaAg2Cu[VO4]2 quantum magnet — •Y. Krupskaya, M. Schäpers, E. Vavilova, A.U.B. Wolter-Giraud, H.-J. Grafe, V. Kataev, A. Möller, and B. Büchner
15:00 TT 40.45 Superconducting energy gap of the organic charge-transfer salts κ-(ET)2Cu[N(CN)2]Br and κ-(ET)2Cu(NCS)2 studied by point-contact spectroscopy — •Severin Schad, Benedikt Hartmann, and Jens Müller
15:00 TT 40.46 Thin films of the organic charge transfer compounds TMP-F4TCNQ and TMP-DTF — •Kai Ackermann, Milan Rudloff, Michael Bolte, Harald Jeschke, Matthias Wagner, Roser Valenti, and Michael Huth
15:00 TT 40.47 Scanning Tunneling Spectroscopy at Surfaces of Superconducting Charge-Transfer Salts — •Sandra Diehl, Torsten Methfessel, Jens Müller, Michael Lang, and Hans-Joachim Elmers
15:00 TT 40.48 New insight in the glass-like dynamics of the organic charge-transfer salts κ-(BEDT-TTF)2X from fluctuation spectroscopy — •Benedikt Hartmann, Robert Rommel, Jens Brandenburg, John Schlueter, and Jens Müller
15:00 TT 40.49 Exploring the full phase diagram of TTF-CA under pressure — •Armin Dengl, Tobias Knoblauch, Rebecca Beyer, Tomislav Ivek, Gabriele Untereiner, and Martin Dressel
15:00 TT 40.50 Thin film growth and characterization of the neutral-ionic phase transition system tetrathiafulvalene-p-chloranil — •Achim Rippert, Milan Rudloff, Kai Ackermann, Lukas Keller, and Michael Huth
15:00 TT 40.51 Resistivity and Hall-Effect Measurements on LaAlO3/SrTiO3−δ Heterostructures — •Ahmed Sleem, Dirk Fuchs, Philipp Müller, Rudolf Schneider, Dagmar Gerthsen, and Hilbert von Löhneysen
15:00 TT 40.52 Wetting an oxide heterostructure: influence of surface water adsorbates on the electronic properties of LaAlO3/SrTiO3 studied by in situ photoelectron spectroscopy — •Philipp Scheiderer, Florian Pfaff, Judith Gabel, Mihaela Gorgoi, Michael Sing, and Ralph Claessen
15:00 TT 40.53 Localized and delocalized interface states in LaAlO3/SrTiO3 heterostructures as probed by resonant inelastic x-ray scattering — •Florian Pfaff, Hidenori Fujiwara, Yoshito Nishitani, Yoshihisa Harada, Shigemasa Suga, Michael Sing, and Ralph Claessen
15:00 TT 40.54 Growth and physical properties of La8Cu7O19 single crystals — •Ashwin Mohan, Surjeet Singh, Wolf Schottenhamel, Giacomo Prando, Sven Partzsch, Valentina Bisogni, Abdel-Hafez Mahmoud, Jochen Geck, Sabine Wurmehl, Christian Hess, and Bernd Büchner
15:00 TT 40.55 Phase diagram of the effective Ising spin-1/2 chain compound CoNb2O6 in transverse magnetic field — •Simon Scharffe, Oliver Breunig, Johanna Frielingsdorf, Martin Valldor, Markus Garst, Eran Sela, and Thomas Lorenz
15:00 TT 40.56 Coexistence of anomalous and normal diffusion in integrable Mott insulators — •Robin Steinigeweg, Jacek Herbrych, Peter Prelovšek, and Marcin Mierzejewski
15:00 TT 40.57 Quantum phases of a frustrated four-leg spin tubeMarcelo Arlego, Wolfram Brenig, •Yousef Rahnavard, Björn Willenberg, Hector Rosales, and Gerardo Rossini
15:00 TT 40.58 Tuning frustrated antiferromagnetism in intermetallic AFe4X2 systems — •Katharina Weber, Nandang Mufti, Til Goltz, Theo Woike, Hans-Henning Klauß, Christoph Bergmann, Inga Kraft, Helge Rosner, and Christoph Geibel
15:00 TT 40.59 Phase Space Berry Phases and Electronic Transport in Magnetic Whirl Structures — •Robert Bamler and Achim Rosch
15:00 TT 40.60 Transverse susceptibility of high-quality single crystal MnSi — •Felix Rucker, Andreas Bauer, Alfonso Chacón, Maximilian Hirschberger, and Christian Pfleiderer
15:00 TT 40.61 Linear magnetoelectric effects in the cubic ferrimagnetic helimagnet Cu2OSeO3: phenomenological theoryMaria Eleni Belesi, •Ioannis Rousochatzakis, Mohamed Abid, Ulrich Rössler, Helmut Berger, and Jean-Philippe Ansermet
15:00 TT 40.62 Skyrmionic exictations in magnetoelectric Cu2OSeO3 — •Steffen Harms, Maria Belesi, Helmuth Berger, Jean-Philippe Ansermet, Christoph Grams, Daniel Niermann und Joachim Hemberger
15:00 TT 40.63 Vibrating-coil magnetometry in rare-earth pyrochlore compounds — •Christopher Krey, Stefan Legl, Sarah R. Dunsiger, Jason S. Gardner, Jennifer M. Roper, Hanna A. Dabkowska, Jose A. Rodriguez, Graeme M. Luke, and Christian Pfleiderer
15:00 TT 40.64 Versatile module for fast experiments with focussing neutron guides — •Tim Adams, Georg Brandl, Alfonso Chacon, Marein Rahn, Sebastian Mühlbauer, Robert Georgii, Peter Böni, and Christian Pfleiderer
15:00 TT 40.65 Preparation and characterization of doped spin ice — •Peter Laschitzky, Martin Hiertz, Oliver Breunig, Gerhard Kolland, Johanna Frielingsdorf, Martin Valldor, and Thomas Lorenz
15:00 TT 40.66 Investigations of the Magnetic Properties in the Pyrochlore Ho2Ti2O7 — •Rico Schönemann, Thomas Herrmannsdörfer, Elizabeth Lauren Green, Richard Skrotzki, Zhaosheng Wang, Hiroshi Kaneko, Haruhiko Suzuki, and Joachim Wosnitza
15:00 TT 40.67 Thermodynamic properties of spin-S boundary defects in antiferromagnetic Heisenberg chains — •Björn Willenberg, Jan Grelik, Wolfram Brenig, and Holger Frahm
15:00 TT 40.68 Optical phonons in multiferroic CuCrO2, studied by Raman and Far-Infrared spectroscopy — •Michael Eichberger, Jean Geurts, Michael Schmidt, Vladimir Tsurkan, and Joachim Deisenhofer
15:00 TT 40.69 The spin Drude weight in the spin-1/2 XXZ chain: a combined exact diagonalization and time-dependent DMRG study — •Johannes Hauschild, Christoph Karrasch, Stephan Langer, and Fabian Heidrich-Meisner
15:00 TT 40.70 Kinetic description of the thermalization dynamics of weakly interacting quantum systems — •Michael Stark and Marcus Kollar
15:00 TT 40.71 Quasiparticle parameterization of meanfields, Galilean invariance and universal conserving response function — •Klaus Morawetz
15:00 TT 40.72 Electronic structure of Cu: An LDA+DMFT approach — •Kathrin Garb, Wilhelm Appelt, Joseph-Andreas Weber, Michael Leitner, Christoph Hugenschmidt, Peter Böni, Igor Di Marco, and Liviu Chioncel
15:00 TT 40.73 Electronic correlations in FeAl: an LDA+DMFT study — •Anna Galler, Ciro Taranto, Merzuk Kaltak, Giorgio Sangiovanni, Alessandro Toschi, Georg Kresse, and Karsten Held
15:00 TT 40.74 The LDA+RISB and LDA+DMFT method: A juxtaposition — •Christoph Piefke, Daniel Grieger, and Frank Lechermann
15:00 TT 40.75 Variational Cluster Approximation for broken symmetry phases in strongly correlated electron systems — •Benjamin Lenz, Piet Dargel, and Thomas Pruschke
15:00 TT 40.76 Quantification of correlations in an exactly solvable model of harmonically interacting particlesJan Skolimowski, •Krzysztof Byczuk, and Dieter Vollhardt
15:00 TT 40.77 A slave rotor approach to the dynamical screening of Coulomb interactions — •Igor Krivenko, Silke Biermann, and Alexander Lichtenstein
15:00 TT 40.78 Functional RG study of Goldstone fluctuations in the ground state of a fermionic superfluid — •Benjamin Obert, Christoph Husemann, and Walter Metzner
15:00 TT 40.79 Two-particle Green functions calculated by continuous time quantum Monte Carlo simulations — •Markus Wallerberger, Emanuel Gull, Nico Parragh, Giorgio Sangiovanni, Alessandro Toschi, and Karsten Held
15:00 TT 40.80 Reduced Density Matrix Functional Theory- A suitable vehicle to import explicit correlations — •Ebad Kamil, Thomas Pruschke, and Peter E. Bloechl
15:00 TT 40.81 Measurement of the full three-dimensional Fermi surface at room temperature by angular correlation of positron annihilation radiation — •Josef Andreas Weber, Hubert Ceeh, Liviu Chioncel, Kathrin Anna Garb, Christoph Hugenschmidt, Michael Leitner, and Peter Böni
15:00 TT 40.82 Development of high frequency measurement methods for Fermi surface studies under high pressure — •Hui Chang, Sven Friedemann, and Malte Grosche
15:00 TT 40.83 Electron-hole pair condensation at the semimetal-semiconductor transition: a BCS-BEC crossover scenario — •Holger Fehske, Bernd Zenker, Franz Xaver Bronold, Dieter Ihle, Van-Nham Phan, and Klaus Becker
15:00 TT 40.84 Coexistance of phase transition and hysteresis near BEC — •Michael Maennel, Klaus Morawetz, and Pavel Lipavsky
15:00 TT 40.85 Anisotropic superfluidity of bosons in optical Kagome superlattice — •Xuefeng Zhang, Tao Wang, Axel Pelster, and Sebastian Eggert
15:00 TT 40.86 Controlled manipulations of fermionic doublon states in the Hubbard model — •Karsten Balzer and Martin Eckstein
15:00 TT 40.87 Cooperative phenomena in superconducting atom-chips — •Sebastian Fuchs, Björn Kubala, and Joachim Ankerhold
15:00 TT 40.88 localization-delocalization transition in double-well optical lattices — •gang wang
15:00 TT 40.89 Negative absolute temperature for motional degrees of freedom and expansion of interacting bosons in optical lattices — •Simon Braun, Philipp Ronzheimer, Michael Schreiber, Sean Hodgman, Daniel Garbe, Immanuel Bloch, and Ulrich Schneider
15:00 TT 40.90 Long limit of momentum distribution functions in the sudden expansion a spin-imbalanced Fermi gas in one dimension — •Fabian Heidrich-Meisner, Carlos Bolech, Stephan Langer, Ian McCulloch, Giuliano Orso, and Marcos Rigol
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