論文

査読有り
2013年7月9日

Thermodynamic and transport properties of Ru2-xFexCrSi (1.3 ≤ x ≤ 1.8)

Journal of the Korean Physical Society
  • Masakazu Ito
  • ,
  • Toru Hisamatsu
  • ,
  • Tsugumi Rokkaku
  • ,
  • Osamu Murayama
  • ,
  • Iduru Shigeta
  • ,
  • Masahiko Hiroi

62
12
開始ページ
2063
終了ページ
2067
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.3938/jkps.62.2063

We have measured the temperature (T) dependences of the electric resistivity, ρ(T), and the specific heat, Cp(T), of the ferromagnetic full-Heusler compound Ru2-xFexCrSi (1.3 ≤ x ≤ 1.8). ρ(T) shows a metallic behavior (∂ρ/∂T > 0) for 20 ≲ T ≤ 300 K and nominal upturn at around 20 K for all samples. In the low-temperature range, Cp(T) can be described by Debye's T3law. Although the coefficient of the lattice part of Cp(T), β, is insensitive for the Fe concentration x, the electronic specific heat part, γ, decreases with increasing x. The values of the total densities of states (Dtotal(EF)) estimated from γ were 12.8, 10.1, and 9.6 states/f.u. eV for x = 1.3, 1.6, and 1.8, respectively. The values of majority spin band (D↑(EF)) and the minority spin band (D↓(EF)) were also estimated using γ and the spin polarization P defined by Andreev-reflection experiments. © 2013 The Korean Physical Society.

リンク情報
DOI
https://doi.org/10.3938/jkps.62.2063
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000321590800081&DestApp=WOS_CPL
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84880005912&origin=inward
ID情報
  • DOI : 10.3938/jkps.62.2063
  • ISSN : 0374-4884
  • SCOPUS ID : 84880005912
  • Web of Science ID : WOS:000321590800081

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