Spin Structure and Phase Transitions: Theory

Presentations

• Disorder and ferromagnetism in a graphene sheet

  ORAL

  March 16, 2006, 11:15 AM – March 16, 2006, 11:27 AM

  Authors

  • Nuno M.R. Peres

    • Center of Physics and Departamento de F{\'\i}sica, Universidade do Minho, P-4710-057, Braga, Portugal
    • Universidade do Minho. Portugal

  • Francisco Guinea

    • Instituto de Ciencia de Materiales de Madrid. CSIC

  • Antonio H. Casto Neto

    • Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
    • Boston University
    • Department of Physics, Boston University
    • Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA

  View abstract →

• The exchange instability in a graphene bilayer

  ORAL

  March 16, 2006, 11:27 AM – March 16, 2006, 11:39 AM

  Authors

  • Johan Nilsson

  • Antonio Castro Neto

    • Boston University

  • Nuno Peres

    • Univ. Minho

  • Francisco Guinea

    • ICMM

  View abstract →

• Spin Liquid States on the Triangular Lattice: A Projective Symmetry Group Analysis of Schwinger Boson States

  ORAL

  March 16, 2006, 11:39 AM – March 16, 2006, 11:51 AM

  Authors

  • Fa Wang

  • Ashvin Vishwanath

    • UC Berkeley

  View abstract →

• Spin current and spiral spinons in the Heisenberg spin chain

  ORAL

  March 16, 2006, 11:51 AM – March 16, 2006, 12:03 PM

  Authors

  • Yupeng Wang

    • Institute of Physics, Chinese academy of Sciences

  View abstract →

• Partial order in MnSi?

  ORAL

  March 16, 2006, 12:03 PM – March 16, 2006, 12:15 PM

  Authors

  • John Hopkinson

  • Hae-Young Kee

    • University of Toronto
    • Dept. of Physics, Univ. of Toronto, Canada

  View abstract →

• No dominance of RKKY interaction in 4f-magnets

  ORAL

  March 16, 2006, 12:15 PM – March 16, 2006, 12:27 PM

  Authors

  • German Samolyuk

  • Vladimir Antropov

    • Condensed Matter Physics, Ames Laboratory, Ames, IA, 50011
    • Condensed Matter Theory, Ames Laboratory, Ames, IA, 50011
    • Ames Laboratory

  View abstract →

• New classification of magnets

  ORAL

  March 16, 2006, 12:27 PM – March 16, 2006, 12:39 PM

  Authors

  • Vladimir Antropov

    • Condensed Matter Physics, Ames Laboratory, Ames, IA, 50011
    • Condensed Matter Theory, Ames Laboratory, Ames, IA, 50011
    • Ames Laboratory

  View abstract →

• Exact Diagonalization Study of the Quantum Antiferromagnet Cs$_2$CuCl$_4$

  ORAL

  March 16, 2006, 12:39 PM – March 16, 2006, 12:51 PM

  Authors

  • Ookie Ma

  • J.B. Marston

    • Brown University

  • V. F. Mitrovi{\'c}

    • Physics Department Brown University Providence RI 02912

  • M.-A. Vachon

    • Brown University

  View abstract →

• An \textit{ab initio} study of the giant magnetocaloric effect in MnAs

  ORAL

  March 16, 2006, 12:51 PM – March 16, 2006, 1:03 PM

  Authors

  • Hyejung Kim

    • University of Illinois at Urbana-Champaign

  • Yia-Chung Chang

  • Sahraoui Chaieb

    • University of Illinois at Urbana-Champaign

  View abstract →

• Spatially Anisotropic d=3 Ising, XY Magnetic and Percolation Systems: Exact Renormalization-Group Solutions of Hierarchical Models

  ORAL

  March 16, 2006, 1:03 PM – March 16, 2006, 1:15 PM

  Authors

  • Aykut Erba\c{s}

    • Ko\c{c} U. and ITU

  • Asli Tuncer

    • ITU

  • Burcu Y\"ucesoy

    • ITU

  • A. Nihat Berker

    • Ko\c{c} U. and MIT

  View abstract →

• Simulation of magnetization configurations with constricting magnetization boundary conditions in 2 and 3-D soft-hard magnetic structures

  ORAL

  March 16, 2006, 1:15 PM – March 16, 2006, 1:27 PM

  Authors

  • Jong Han

    • State University of New York at Buffalo

  • Hemachander Subramanian

    • State University of New York at Buffalo

  View abstract →

• Topological transition in a two-dimensional model of liquid crystal

  ORAL

  March 16, 2006, 1:27 PM – March 16, 2006, 1:39 PM

  Authors

  • Ana Isabel Fari\~nas-Sanchez

  • Ricardo Paredes V

  • Bertrand Berche

  View abstract →