73Ge NQR study of superconducting skutterudites MPt 4Ge12 (M = Sr, Ba)

Ko Ichi Magishi, Hitoshi Sugawara, Takahito Saito, Kuniyuki Koyama, Fumiya Kanetake, Hidekazu Mukuda, Yoshio Kitaoka, Kohei M Itoh, Eugene E. Haller

Research output: Contribution to journalArticle

Abstract

We report on the results of the 73Ge-NQR measurements for MPt4Ge12 (M = Sr, Ba) to clarify the microscopic electronic states and the relationship between superconductivity and rattling. In the normal state, 1/T1 is proportional to temperature, showing a Korringa relation 1/T1T = 0.020 and 0.016 (sK)-1 for SrPt4Ge12 and BaPt4Ge12, respectively. Also, in the superconducting state, 1/T1 shows a distinct coherence peak just below TC, which suggests a conventional BCS superconductor.

Original languageEnglish
Article numberSA028
JournalJournal of the Physical Society of Japan
Volume80
Issue numberSUPPL. A
DOIs
Publication statusPublished - 2011 Jul

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superconductivity
electronics
temperature

Keywords

  • Filled skutterudite
  • NQR
  • Superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Magishi, K. I., Sugawara, H., Saito, T., Koyama, K., Kanetake, F., Mukuda, H., ... Haller, E. E. (2011). 73Ge NQR study of superconducting skutterudites MPt 4Ge12 (M = Sr, Ba). Journal of the Physical Society of Japan, 80(SUPPL. A), [SA028]. https://doi.org/10.1143/JPSJS.80SA.SA028

73Ge NQR study of superconducting skutterudites MPt 4Ge12 (M = Sr, Ba). / Magishi, Ko Ichi; Sugawara, Hitoshi; Saito, Takahito; Koyama, Kuniyuki; Kanetake, Fumiya; Mukuda, Hidekazu; Kitaoka, Yoshio; Itoh, Kohei M; Haller, Eugene E.

In: Journal of the Physical Society of Japan, Vol. 80, No. SUPPL. A, SA028, 07.2011.

Research output: Contribution to journalArticle

Magishi, KI, Sugawara, H, Saito, T, Koyama, K, Kanetake, F, Mukuda, H, Kitaoka, Y, Itoh, KM & Haller, EE 2011, '73Ge NQR study of superconducting skutterudites MPt 4Ge12 (M = Sr, Ba)', Journal of the Physical Society of Japan, vol. 80, no. SUPPL. A, SA028. https://doi.org/10.1143/JPSJS.80SA.SA028
Magishi KI, Sugawara H, Saito T, Koyama K, Kanetake F, Mukuda H et al. 73Ge NQR study of superconducting skutterudites MPt 4Ge12 (M = Sr, Ba). Journal of the Physical Society of Japan. 2011 Jul;80(SUPPL. A). SA028. https://doi.org/10.1143/JPSJS.80SA.SA028
Magishi, Ko Ichi ; Sugawara, Hitoshi ; Saito, Takahito ; Koyama, Kuniyuki ; Kanetake, Fumiya ; Mukuda, Hidekazu ; Kitaoka, Yoshio ; Itoh, Kohei M ; Haller, Eugene E. / 73Ge NQR study of superconducting skutterudites MPt 4Ge12 (M = Sr, Ba). In: Journal of the Physical Society of Japan. 2011 ; Vol. 80, No. SUPPL. A.
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