μSR Studies on Heavy Fermion Superconductors CeIrIn 5 and CeCoIn 5

Wataru Higemoto; Akihiro Koda; Ryosuke Kadono; Yu Kawasaki; Yoshinori Haga; Dai Aoki; Rikio Settai; Hiroaki Shishido; Yoshichika Onuki

doi:10.1143/JPSJ.71.1023

μSR Studies on Heavy Fermion Superconductors CeIrIn ₅ and CeCoIn ₅

Wataru Higemoto, Akihiro Koda, Ryosuke Kadono, Yu Kawasaki, Yoshinori Haga, Dai Aoki, Rikio Settai, Hiroaki Shishido, Yoshichika Onuki

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

26 Citations (Scopus)

Abstract

We report that the muon spin relaxation rate under zero-external field in the heavy-fermion compound CeTrIn ₅ (Tr=Ir, Co) is independent of temperature down to 20mK, demonstrating the absence of magnetism due to long-range magnetic order and/or to the breakdown of time-reversal symmetry in the superconducting state. The magnetic penetration depth deduced by the muon spin relaxation rate under a transverse field is λ ∼ 6700 Å for CeIrIn ₅ at 402 G and ∼5500 Å for CeCoIn ₅ at 3 kG.

Original language	English
Pages (from-to)	1023-1026
Number of pages	4
Journal	journal of the physical society of japan
Volume	71
Issue number	4
DOIs	https://doi.org/10.1143/JPSJ.71.1023
Publication status	Published - 2002 Apr
Externally published	Yes

Keywords

CCoIn
CeIrIn
Heavry fermion superconductor
μSR

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.71.1023

Cite this

@article{d7a33beb3d78489288e38d6cb362d6b8,

title = "μSR Studies on Heavy Fermion Superconductors CeIrIn 5 and CeCoIn 5 ",

abstract = "We report that the muon spin relaxation rate under zero-external field in the heavy-fermion compound CeTrIn 5 (Tr=Ir, Co) is independent of temperature down to 20mK, demonstrating the absence of magnetism due to long-range magnetic order and/or to the breakdown of time-reversal symmetry in the superconducting state. The magnetic penetration depth deduced by the muon spin relaxation rate under a transverse field is λ ∼ 6700 {\AA} for CeIrIn 5 at 402 G and ∼5500 {\AA} for CeCoIn 5 at 3 kG.",

keywords = "CCoIn, CeIrIn, Heavry fermion superconductor, μSR",

author = "Wataru Higemoto and Akihiro Koda and Ryosuke Kadono and Yu Kawasaki and Yoshinori Haga and Dai Aoki and Rikio Settai and Hiroaki Shishido and Yoshichika Onuki",

year = "2002",

month = apr,

doi = "10.1143/JPSJ.71.1023",

language = "English",

volume = "71",

pages = "1023--1026",

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

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "4",

}

TY - JOUR

T1 - μSR Studies on Heavy Fermion Superconductors CeIrIn 5 and CeCoIn 5

AU - Higemoto, Wataru

AU - Koda, Akihiro

AU - Kadono, Ryosuke

AU - Kawasaki, Yu

AU - Haga, Yoshinori

AU - Aoki, Dai

AU - Settai, Rikio

AU - Shishido, Hiroaki

AU - Onuki, Yoshichika

PY - 2002/4

Y1 - 2002/4

N2 - We report that the muon spin relaxation rate under zero-external field in the heavy-fermion compound CeTrIn 5 (Tr=Ir, Co) is independent of temperature down to 20mK, demonstrating the absence of magnetism due to long-range magnetic order and/or to the breakdown of time-reversal symmetry in the superconducting state. The magnetic penetration depth deduced by the muon spin relaxation rate under a transverse field is λ ∼ 6700 Å for CeIrIn 5 at 402 G and ∼5500 Å for CeCoIn 5 at 3 kG.

AB - We report that the muon spin relaxation rate under zero-external field in the heavy-fermion compound CeTrIn 5 (Tr=Ir, Co) is independent of temperature down to 20mK, demonstrating the absence of magnetism due to long-range magnetic order and/or to the breakdown of time-reversal symmetry in the superconducting state. The magnetic penetration depth deduced by the muon spin relaxation rate under a transverse field is λ ∼ 6700 Å for CeIrIn 5 at 402 G and ∼5500 Å for CeCoIn 5 at 3 kG.

KW - CCoIn

KW - CeIrIn

KW - Heavry fermion superconductor

KW - μSR

UR - http://www.scopus.com/inward/record.url?scp=0036250873&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036250873&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.71.1023

DO - 10.1143/JPSJ.71.1023

M3 - Article

AN - SCOPUS:0036250873

SN - 0031-9015

VL - 71

SP - 1023

EP - 1026

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 4

ER -