Focus Session: Orbital/Charge Order in Complex Oxides

Presentations

• Raman scattering studies of field- and temperature-dependent melting of charge order in La$_{1-x}$Ca$_{x}$MnO$_{3}$

  ORAL

  March 14, 2006, 8:00 AM – March 14, 2006, 8:12 AM

  Authors

  • Harini Barath

  • Minjung Kim

  • S.L. Cooper

    • Dept. of Physics and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign

  • M. Ruebhausen

    • Institut fur Angewandte Physik, Univeristat Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany

  • S.W. Cheong

    • Dept. of Physics and Astronomy, Rutgers University, New Brunswick, NJ

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• Theoretical study of charge, spin, and orbital order in half-doped $La_{0.5}Ca_{0.5}MnO_3$.

  ORAL

  March 14, 2006, 8:12 AM – March 14, 2006, 8:24 AM

  Authors

  • Dmitri Volja

  • Weiguo Yin

    • Brookhaven National Laboratory

  • Wei Ku

    • BNL

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• Charge versus orbital-occupancy ordering in manganites

  ORAL

  March 14, 2006, 8:24 AM – March 14, 2006, 8:36 AM

  Authors

  • Weidong Luo

  • Maria Varela

  • Jing Tao

  • Stephen J. Pennycook

  • Sokrates T. Pantelides

    • Vanderbilt University and Oak Ridge National Laboratory

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• Orbital and oxygen vacancy ordering in La$_{1-x}$Sr$_{x}$MnO$_{3-\delta }$ (x$\ge $0.8, $\delta \ge $0.15)

  ORAL

  March 14, 2006, 8:36 AM – March 14, 2006, 8:48 AM

  Authors

  • Leopoldo Suescun

    • Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 \& Department of Physics, Northern Illinois University, DeKalb, IL 60115

  • Bogdan Dabrowski

    • Argonne National Laboratory
    • Department of Physics, Northern Illinois University, DeKalb, IL 60115
    • MSD, ANL, Argonne, IL 60439 \& Dept. of Physics, NIU, DeKalb, IL 60115

  • James Mais

    • Dept. of Physics, Northern Illinois University
    • Dept. of Physics, NIU, DeKalb, IL 60115

  • Stanislaw Kolesnik

    • Dept. of Physics, Northern Illinois University
    • Dept. of Physics, NIU, DeKalb, IL 60115

  • James W. Richardson

    • Intense Pulsed Neutron Source Division, ANL, Argonne, IL 60439
    • IPNS, Argonne National Laboratory

  • James Jorgensen

    • ANL
    • MSD, ANL, Argonne, IL 60439

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• A realistic approach to effective Hamiltonians for strongly correlated electron materials: Study of orbital ordering in LaMnO$_3$

  ORAL

  March 14, 2006, 8:48 AM – March 14, 2006, 9:00 AM

  Authors

  • Weiguo Yin

    • Brookhaven National Laboratory

  • Dmitri Volja

  • Wei Ku

    • Condensed Matter Physics \& Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973

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• In-plane anisotropy of the electronic structure for the charge/orbital ordered state in half-doped Mn-oxide

  ORAL

  March 14, 2006, 9:00 AM – March 14, 2006, 9:12 AM

  Authors

  • Y.S. Lee

  • S. Onoda

  • Y. Tokunaga

  • J.P. He

  • Y. Kaneko

    • ERATO-SSS, Japan

  • T. Arima

    • Tohoku University, Japan

  • N. Nagaosa

  • Y. Tokura

    • Univeristy of Tokyo, Japan

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• Magnetic Excitations in the CE-type manganite Pr$_{0.5}$Ca$_{1.5}$MnO$_{4}$

  ORAL

  March 14, 2006, 9:12 AM – March 14, 2006, 9:24 AM

  Authors

  • Jaime Fernandez-Baca

    • Oak Ridge National Laboratory
    • ORNL
    • ORNL and Univ. of Tennessee

  • Feng Ye

    • ORNL

  • Songxue Chi

    • University of Tennessee, Knoxville
    • Univ. of Tennessee

  • Pengcheng Dai

    • Univ. of Tennessee and ORNL

  • J. W. Lynn

    • NIST Center for Neutron Scattering
    • NIST

  • R. Mathieu

    • University of Tokyo
    • Univ. of Tokyo

  • Y. Tokura

    • University of Tokyo
    • Univ. of Tokyo and CERC, Japan
    • Univ. of Tokyo

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• How Cation-Covalency controls Electron Localization in t2g Perovskites

  ORAL

  March 14, 2006, 9:24 AM – March 14, 2006, 9:36 AM

  Authors

  • Ole Krogh Andersen

    • Max-Planck-Institut FKF Stuttgart Germany
    • Max-Planck-Institut f\"ur Festk\"orperForschung, Stuttgart, Germany
    • Max Planck Institute for Solid State Research
    • Max-Planck Institut fuer FestKoerperForschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany

  • Atsushi Yamasaki

    • Max-Planck-Institut f\"ur Festk\"orperforschung
    • Max-Planck Institute FKF, Stuttgart

  • Eva Pavarini

    • Forschungszentrum Juelich

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• Resonant soft x-ray diffraction from Fe$_{3}$O$_{4}$/MgO below the Verwey transition

  ORAL

  March 14, 2006, 9:36 AM – March 14, 2006, 9:48 AM

  Authors

  • C. Schuessler-Langeheine

  • J. Schlappa

  • C. F. Chang

  • H. Ott

  • Z. Hu

  • L. H. Tjeng

    • II. Physikalisches Institut, Universitaet zu Koeln, Germany

  • E. Schierle

  • E. Weschke

  • G. Kaindl

    • Institut fuer Experimentalphysik, Freie Universitaet Berlin, Germany

  • A. Tanaka

    • ADSM, Hiroshima University, Japan

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• Electronically smectic-like phase in a nearly half-doped manganite

  COFFEE_KLATCH · Invited

  March 14, 2006, 9:48 AM – March 14, 2006, 10:24 AM

  Authors

  • Feng Ye

    • Oak Ridge National Laboratory
    • Center for Neutron Scattering, Oak Ridge National Laboratory

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• Spin moment over 10-300 K and the delocalization of magnetic electrons above the Verwey transition in magnetite

  ORAL

  March 14, 2006, 10:24 AM – March 14, 2006, 10:36 AM

  Authors

  • P. A. Montano

    • U. of Illinois Chicago and USDOE

  • Yinwan Li

    • U. of Illinois Chicago and Argonne National Laboratory

  • B. Barbiellini

    • Northeastern U.

  • P. E. Mijnarends

    • Northeastern U. and Delft University of Technology

  • S. Kaprzyk

    • Northeastern U. and and AGH (Poland)

  • A. Bansil

    • Northeastern U.

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• Dimensionality switching in electric conduction in FeS

  ORAL

  March 14, 2006, 10:36 AM – March 14, 2006, 10:48 AM

  Authors

  • Tomohiro Takayama

  • Kohshi Takenaka

  • Hidenori Takagi

    • RIKEN(The Institute of Physical and Chemical Research), also at University of Tokyo and CREST-JST

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• First-order phase transition induced by disorder in a model for manganites

  ORAL

  March 14, 2006, 10:48 AM – March 14, 2006, 11:00 AM

  Authors

  • Eduardo Castro

  • J.M.B. Lopes dos Santos

    • CFP and Departamento de F\'{i}sica, Faculdade de Ci\^{e}ncias Universidade do Porto
    • CFP and Departamento de F{\'\i}sica, Faculdade de Ci{\^e}ncias Universidade do Porto, 4169-007 Porto, Portugal

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