Superconducting and normal state properties of single crystalline RFeAsO-based materials

ORAL

Abstract

We report electrical resistivity, Hall effect, magnetoresistance, magnetization, and specific heat measurements on single crystals of several RFeAsO-based materials (R = rare-earth). We also discuss the effects of lattice compression on the magnetic and superconducting transition temperatures. These single crystal studies benefit from significantly sharper signatures of the transitions, compared to earlier studies on polycrystalline samples.

*Synthesis and superconductivity screening supported by AFOSR-MURI, Grant FA9550-09-1-0603. Physical properties characterization supported DOE, Grant DE-FG02-04-ER46105. High pressure measurements supported by DOE grant DE-FG52-06NA26205.

Authors

  • J.J. Hamlin

    • Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
  • C.A. McElroy

    • Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
  • Benjamin D. White

    • Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
    • University of California, San Diego
    • Montana State University
  • D.Y. Tutun

    • Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
  • N. Kanchanavatee

    • Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
  • Y. Heo

    • Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
  • A.N. Ellington

    • Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
  • Brian Maple

    • Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
    • University of California at San Diego