Study of nematicity in iron pnictide BaFe2(As1-xPx)2 with micro-ARPES

ORAL

Abstract

Iron pnictides posses a rich phase diagram. In particular, the nematic phase has drawn much attention for its proximity to superconductivity. Recently, nematicity has been observed above the tetragonal-to-orthorhombic structural transition temperature. Such observations generated interest in nematic fluctuations and rasied questions about the origin of the nematic phase of iron based superconductors. With small beam spot micro-Angle-Resolved Photo Emission Spectroscopy (µARPES) technique, spatial variations in dispersion and Fermiology in the nematic fluctuation regime was studied. providing new insights about the nature of nematicity.

–

Presenters

  • Jonathan Han Son Ma

    Univ of California - Berkeley

Authors

  • Jonathan Han Son Ma

    Univ of California - Berkeley

  • Gregory Affeldt

    Univ of California - Berkeley

  • Ian Hayes

    Physics, Univ of California - Berkeley, Univ of California - Berkeley, Physics, University of California Berkeley

  • Chris Jozwiak

    Advanced light source, Lawrence Berkeley Natl Lab, Lawrence Berkeley National Laboratory, Lawrence Berkeley National Lab, Advanced Light Source, Lawrence Berkeley National Laboratory

  • James Analytis

    University of California Berkeley, Physics, UC Berkeley, Physics, University of California, Berkeley, Univ of California - Berkeley, University of California, Berkeley, Physics, Univ of California - Berkeley, Physics, University of California Berkeley

  • Alessandra Lanzara

    University of California Berkeley, University of California, Univ of California - Berkeley, Physics Department - University California, Berkeley, Materials Sciences Division - Lawrence Berkeley National Laboratory, Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley and Lawrence Berkeley National Laboratory, Department of Physics, Univ of California - Berkeley, Univ. of California - Berkeley