Header

UZH-Logo

Maintenance Infos

Strong pressure dependence of the magnetic penetration depth in single crystals of the heavy-fermion superconductor CeCoIn_{5} studied by Muon Spin Rotation


Howald, L; Maisuradze, A; de Réotier, P; Yaouanc, A; Baines, C; Lapertot, G; Mony, K; Brison, J P; Keller, H (2013). Strong pressure dependence of the magnetic penetration depth in single crystals of the heavy-fermion superconductor CeCoIn_{5} studied by Muon Spin Rotation. Physical Review Letters, 110(1):017005.

Abstract

In the tetragonal heavy fermion system CeCoIn5 the unconventional superconducting state is probed by means of muon spin rotation. The pressure dependence (0–1 GPa) of the basal-plane magnetic penetration depth (λa), the penetration depth anisotropy (γ=λc/λa) and the temperature dependence of 1/λi2 (i=a, c) were studied in single crystals. A strong decrease of λa with pressure was observed, while γ and λi2(0)/λi2(T) are pressure independent. A linear relationship between 1/λa2(270  mK) and Tc was also found. The large decrease of λa with pressure is the signature of an increase of the number of superconducting quasiparticles by a factor of about 2.

Abstract

In the tetragonal heavy fermion system CeCoIn5 the unconventional superconducting state is probed by means of muon spin rotation. The pressure dependence (0–1 GPa) of the basal-plane magnetic penetration depth (λa), the penetration depth anisotropy (γ=λc/λa) and the temperature dependence of 1/λi2 (i=a, c) were studied in single crystals. A strong decrease of λa with pressure was observed, while γ and λi2(0)/λi2(T) are pressure independent. A linear relationship between 1/λa2(270  mK) and Tc was also found. The large decrease of λa with pressure is the signature of an increase of the number of superconducting quasiparticles by a factor of about 2.

Statistics

Citations

Dimensions.ai Metrics
6 citations in Web of Science®
6 citations in Scopus®
2 citations in Microsoft Academic
Google Scholar™

Altmetrics

Downloads

41 downloads since deposited on 22 Mar 2013
9 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2013
Deposited On:22 Mar 2013 13:02
Last Modified:16 Feb 2018 17:32
Publisher:American Physical Society
ISSN:0031-9007
OA Status:Green
Publisher DOI:https://doi.org/10.1103/PhysRevLett.110.017005

Download

Download PDF  'Strong pressure dependence of the magnetic penetration depth in single crystals of the heavy-fermion superconductor CeCoIn_{5} studied by Muon Spin Rotation'.
Preview
Content: Accepted Version
Filetype: PDF
Size: 465kB
View at publisher