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

doi:10.1143/JPSJS.80SA.SA028

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

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article › peer-review

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 T_C, which suggests a conventional BCS superconductor.

Original language	English
Article number	SA028
Journal	Journal of the Physical Society of Japan
Volume	80
Issue number	SUPPL. A
DOIs	https://doi.org/10.1143/JPSJS.80SA.SA028
Publication status	Published - 2011 Jul 1

Keywords

Filled skutterudite
NQR
Superconductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJS.80SA.SA028

Fingerprint Dive into the research topics of '73Ge NQR study of superconducting skutterudites MPt 4Ge12 (M = Sr, Ba)'. Together they form a unique fingerprint.

Cite this

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, 01.07.2011.

Research output: Contribution to journal › Article › peer-review

@article{fb2d06b37d0749df8c582c05e3698f58,

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

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.",

keywords = "Filled skutterudite, NQR, Superconductivity",

author = "Magishi, {Ko Ichi} and Hitoshi Sugawara and Takahito Saito and Kuniyuki Koyama and Fumiya Kanetake and Hidekazu Mukuda and Yoshio Kitaoka and Itoh, {Kohei M.} and Haller, {Eugene E.}",

year = "2011",

month = jul,

day = "1",

doi = "10.1143/JPSJS.80SA.SA028",

language = "English",

volume = "80",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "SUPPL. A",

}

TY - JOUR

T1 - 73Ge NQR study of superconducting skutterudites MPt 4Ge12 (M = Sr, Ba)

AU - Magishi, Ko Ichi

AU - Sugawara, Hitoshi

AU - Saito, Takahito

AU - Koyama, Kuniyuki

AU - Kanetake, Fumiya

AU - Mukuda, Hidekazu

AU - Kitaoka, Yoshio

AU - Itoh, Kohei M.

AU - Haller, Eugene E.

PY - 2011/7/1

Y1 - 2011/7/1

N2 - 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.

AB - 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.

KW - Filled skutterudite

KW - NQR

KW - Superconductivity

UR - http://www.scopus.com/inward/record.url?scp=80052396598&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052396598&partnerID=8YFLogxK

U2 - 10.1143/JPSJS.80SA.SA028

DO - 10.1143/JPSJS.80SA.SA028

M3 - Article

AN - SCOPUS:80052396598

VL - 80

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - SUPPL. A

M1 - SA028

ER -