Affordable Access

Publisher Website

Effect of pressure on the magnetostructural transition in SrFe2As2

Authors
  • Kumar, M.
  • Nicklas, M.
  • Jesche, A.
  • Caroca-Canales, N.
  • Schmitt, M.
  • Hanfland, M.
  • Kasinathan, D.
  • Schwarz, U.
  • Rosner, H.
  • Geibel, C.
Type
Published Article
Publication Date
Oct 13, 2008
Submission Date
Jul 27, 2008
Identifiers
DOI: 10.1103/PhysRevB.78.184516
Source
arXiv
License
Yellow
External links

Abstract

We present a systematic pressure study of poly- and single crystalline SrFe2As2 by electrical resistivity and X-ray diffraction measurements. SrFe2As2 exhibits a structural phase transition from a tetragonal to an orthorhombic phase at T0=205 K. The structural phase transition is intimately linked to a spin-density-wave transition taking place at the same temperature. Our pressure experiments show that T0 shifts to lower temperatures with increasing pressure. We can estimate a critical pressure of 4 to 5 GPa for the suppression of T0 to zero temperature. At pressures above 2.5 GPa the resistivity decreases significantly below Tx=40 K hinting at the emergence of superconductivity but no zero-resistance state is observed up to 3 GPa.

Report this publication

Statistics

Seen <100 times