Superconductivity in the ternary boride Cr2Re3B with the β-Mn-type structure

Haru Niimura, Kenji Kawashima, Keigo Inoue, Masaaki Yoshikawa, Jun Akimitsu

Research output: Contribution to journalArticle

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Abstract

We report the superconducting properties of a new intermetallic superconductor, Cr2Re3B. Cr2Re3B has a cubic structure called the β-Mn-type structure with the space group P4132 (No. 213), and shows a superconducting transition at around Tc = 4.8 K. The magnetization curve shows a typical type-II superconducting behavior. The estimated superconducting parameters of lower and upper critical fields, coherence length ε(0), penetration depth γ (0), and Ginzburg-Landau (GL) parameter κ(0), determined using GL relations, are about Hc1(0) = 52 Oe, Hc2(0) = 100 kOe, γ(0) = 356 nm, ε (0) = 5.7 nm, and κ (0) = 62.5, respectively. The specific heat data indicates that the superconductivity in Cr 2Re3B can be described in the BCS theory. Finally, we discuss the superconducting state of Cr2Re3B using the determined parameters.

Original languageEnglish
Article number044702
JournalJournal of the Physical Society of Japan
Volume83
Issue number4
DOIs
Publication statusPublished - Apr 15 2014
Externally publishedYes

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borides
superconductivity
BCS theory
intermetallics
penetration
specific heat
magnetization
curves

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Superconductivity in the ternary boride Cr2Re3B with the β-Mn-type structure. / Niimura, Haru; Kawashima, Kenji; Inoue, Keigo; Yoshikawa, Masaaki; Akimitsu, Jun.

In: Journal of the Physical Society of Japan, Vol. 83, No. 4, 044702, 15.04.2014.

Research output: Contribution to journalArticle

Niimura, Haru ; Kawashima, Kenji ; Inoue, Keigo ; Yoshikawa, Masaaki ; Akimitsu, Jun. / Superconductivity in the ternary boride Cr2Re3B with the β-Mn-type structure. In: Journal of the Physical Society of Japan. 2014 ; Vol. 83, No. 4.
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