Specific heat study of magnetic superconductor ErNi2B2C single crystal under magnetic fields

S. Nakao, T. Hanaguri, K. Hashimoto, M. Nohara, H. Takagi, K. Kitazawa

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Specific heat Cp of an ErNi2B2C single crystal was measured. In the absence of a magnetic field, both antiferromagnetic (AF) and weak ferromagnetic transitions were observed as a peak and a kink in Cp at TN ∼ 6 K and TWF ∼ 2.3 K, respectively. Under magnetic fields parallel to the [1 1 0] direction, TN decreases monotonically with increasing field, while TWF increases at low fields and decreases above 1 T. This re-entrant behavior of TWF is reasonably explained by assuming the competition between magnetocrystalline anisotropy and the weak ferromagnetism arising from the magnetic moment at the AF domain boundary.

Original languageEnglish
Pages (from-to)179-180
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume388-389
DOIs
Publication statusPublished - May 1 2003
Externally publishedYes
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: Aug 20 2002Aug 27 2002

Keywords

  • Borocarbide
  • ErNiBC
  • Magnetic superconductor
  • Specific heat

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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