Robust properties of the superconducting ferromagnet UCoGe Journal Articles uri icon

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abstract

  • The angular dependent magnetoresistance of the superconducting ferromagnet UCoGe is studied in detail at 40 mK to fields of 18 T in a single crystal sample with a low residual resistivity ratio [R(300 K)/R(1 K)=RRR=5]. A ferro-to-ferrimagnetic transition near 9 T that depends only on the field component along the uniaxial magnetic c axis is observed in both transport and susceptibility. Reverse hysteresis in the magnetoresistance in the critical field region indicates a coupling of the superconductivity to the magnetization for fields aligned closely to the ab plane. These results corroborate and advance previous findings on higher residual resistivity ratio samples.

authors

  • Steven, E
  • Kiswandhi, A
  • Krstovska, D
  • Brooks, JS
  • Almeida, M
  • Gonçalves, AP
  • Henriques, MS
  • Luke, Graeme
  • Williams, TJ

publication date

  • March 28, 2011