Superconducting Properties of CeRu2

Masato Hedo, Yoshihiko Inada, Etsuji Yamamoto, Yoshinori Haga, Yoshichika Onuki, Yuji Aoki, Tatsuma D. Matsuda, Hideyuki Sato, Saburo Takahashi

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83 Citations (Scopus)

Abstract

We have measured the specific heat and the magnetization in the superconducting mixed state of CeRu2 at low temperatures and in high magnetic fields. We have clarified a rich variety of superconducting properties such as the temperature dependence of the electronic specific heat and Maki parameters κ1, κ2 and κ3. From these experimental results, CeRu2 is concluded to be of the BCS-type in superconductivity. Nevertheless, interesting is the magnetic field dependence of the electronic specific heat at 0.5 K, indicating a √H like behavior in low fields and a H-linear dependence in high fields up to the upper critical field of 50 kOe. This characteristic specific heat is discussed on the basis of a microscopic theory by Brandt et al.

Original languageEnglish
Pages (from-to)272-279
Number of pages8
Journaljournal of the physical society of japan
Volume67
Issue number1
DOIs
Publication statusPublished - 1998 Jan 1

Keywords

  • CeRu
  • Magnetization
  • Maki parameters
  • Specific heat
  • Superconductor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Hedo, M., Inada, Y., Yamamoto, E., Haga, Y., Onuki, Y., Aoki, Y., Matsuda, T. D., Sato, H., & Takahashi, S. (1998). Superconducting Properties of CeRu2. journal of the physical society of japan, 67(1), 272-279. https://doi.org/10.1143/JPSJ.67.272