Enhanced SDW transition temperature under hydrostatic pressure in Fe1.02Se0.10Te0.90

ORAL

Abstract

We will present the spin glass (SG) to spin density wave (SDW) transition in Fe1.02Se0.10Te0.90 under hydrostatic pressure. At ambient pressure, the present compound shows SG transition, characterized by a broad weak magnetic peak. By applying hydrostatic pressure, SG develops to SDW at Pc $\sim $ 0.5 GPa and the sharp strong magnetic Bragg peak appears. The SDW transition temperature is increased up to $\sim $ 250 K at 8 GPa, which is sharply contrast to the results of pressure experiments in LaFeAsO families and BaFe2As2 families.

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Authors

  • Naoyuki Katayama

    • University of Virginia

  • Kazuyuki Matsubayashi

    • University of Tokyo

  • J.B. Le\~{a}o

    • NIST
    • NIST Center for Neutron Research

  • Sungdae Ji

    • University of Virginia

  • Sung Chang

    • NIST
    • NIST Center for Neutron Research
    • National Institute of Standard and Technology

  • Yoshiya Uwatoko

    • University of Tokyo

  • Taku Sato

    • University of Tokyo

  • Seunghun Lee

    • University of Virginia