Session W13: Focus Session: Iron Pnictides and Other Novel Superconductors XIV: ARPES

11:15 AM–2:03 PM, Thursday, March 19, 2009
Room: 309

Sponsoring Unit: DCMP
Chair: Norman Mannella, University of Tennessee, Knoxville

Abstract ID: BAPS.2009.MAR.W13.3

Abstract: W13.00003 : Study of band structure and Fermi Surface of SrFe$_{2}$As$_{2}$ and BaFe$_{2}$As$_{2 }$by angle-resolved photoemission spectroscopy

11:39 AM–11:51 AM

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Authors:

  Madhab Neupane
    (Boston College)

  Y.-M. Xu
    (Boston College)

  Z. Wang
    (Boston College)

  P. Richard
    (WPI Research Center, Tohoku University)

  S. Souma
    (WPI Research Center, Tohoku University)

  K. Nakayama
    (Tohoku University)

  T. Sugawara
    (Tohoku University,)

  T. Arakane
    (Tohoku University)

  Y. Sekiba
    (Tohoku University)

  A. Takayama
    (Tohoku University)

  T. Sato
    (Tohoku University)

  T. Takahashi
    (Tohoku University)

  X. Dai
    (Institute of Physics, Chinese Academy of Sciences)

  Z. Fang
    (Institute of Physics, Chinese Academy of Sciences)

  G.F. Chen
    (Institute of Physics, Chinese Academy of Sciences)

  J.L. Luo
    (Institute of Physics, Chinese Academy of Sciences)

  J. Bowen
    (Institute of Physics, Chinese Academy of Sciences)

  N.L. Wang
    (Institute of Physics, Chinese Academy of Sciences)

  H. Ding
    (Institute of Physics, Chinese Academy of Sciences)

Recently superconductivity has been discovered in many iron pnictides when they are properly doped with charge carriers. Thus it is important to understand the undoped parent compounds that also have a puzzling collinear antiferromagnetic ground state. We have performed a systematic angle-resolved photoemission study on some of the parent compounds, mostly on SrFe$_{2}$As$_{2}$ and BaFe$_{2}$As$_{2}$, to investigate their electronic structure and Fermi surface. We will report our experimental results and the comparisons to first-principle band calculations.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2009.MAR.W13.3