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 journal › Article

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)

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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 journal › Article

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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AU - Kanetake, Fumiya

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AU - Kitaoka, Yoshio

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