Anisotropic s -wave superconductivity in CaAlSi single crystals from penetration depth measurements

Ruslan Prozorov; Tyson A. Olheiser; Russell W. Giannetta; Kentaro Uozato; Tsuyoshi Tamegai

doi:10.1103/PhysRevB.73.184523

Anisotropic s -wave superconductivity in CaAlSi single crystals from penetration depth measurements

Ruslan Prozorov, Tyson A. Olheiser, Russell W. Giannetta, Kentaro Uozato, Tsuyoshi Tamegai

Physics

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

Abstract

In- and out-of-plane London penetration depths were measured in CaAlSi single crystals (Tc =6.2 and 7.3 K) using a tunnel-diode resonator. A full three-dimensional (3D) BCS analysis of the superfluid density is consistent with a prolate spheroidal gap, with a weak-coupling BCS value in the ab plane and stronger coupling along the c axis. The gap anisotropy was found to significantly decrease for higher Tc samples.

Original language	English (US)
Article number	184523
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	73
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.73.184523
State	Published - 2006

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Online availability

10.1103/PhysRevB.73.184523

Library availability

Discover UIUC Full Text

Cite this

@article{6e72dc38fa0442cfb43290bf98eef56d,

title = "Anisotropic s -wave superconductivity in CaAlSi single crystals from penetration depth measurements",

abstract = "In- and out-of-plane London penetration depths were measured in CaAlSi single crystals (Tc =6.2 and 7.3 K) using a tunnel-diode resonator. A full three-dimensional (3D) BCS analysis of the superfluid density is consistent with a prolate spheroidal gap, with a weak-coupling BCS value in the ab plane and stronger coupling along the c axis. The gap anisotropy was found to significantly decrease for higher Tc samples.",

author = "Ruslan Prozorov and Olheiser, {Tyson A.} and Giannetta, {Russell W.} and Kentaro Uozato and Tsuyoshi Tamegai",

year = "2006",

doi = "10.1103/PhysRevB.73.184523",

language = "English (US)",

volume = "73",

journal = "Physical Review B-Condensed Matter",

issn = "0163-1829",

publisher = "American Institute of Physics Publising LLC",

number = "18",

}

TY - JOUR

T1 - Anisotropic s -wave superconductivity in CaAlSi single crystals from penetration depth measurements

AU - Prozorov, Ruslan

AU - Olheiser, Tyson A.

AU - Giannetta, Russell W.

AU - Uozato, Kentaro

AU - Tamegai, Tsuyoshi

PY - 2006

Y1 - 2006

N2 - In- and out-of-plane London penetration depths were measured in CaAlSi single crystals (Tc =6.2 and 7.3 K) using a tunnel-diode resonator. A full three-dimensional (3D) BCS analysis of the superfluid density is consistent with a prolate spheroidal gap, with a weak-coupling BCS value in the ab plane and stronger coupling along the c axis. The gap anisotropy was found to significantly decrease for higher Tc samples.

AB - In- and out-of-plane London penetration depths were measured in CaAlSi single crystals (Tc =6.2 and 7.3 K) using a tunnel-diode resonator. A full three-dimensional (3D) BCS analysis of the superfluid density is consistent with a prolate spheroidal gap, with a weak-coupling BCS value in the ab plane and stronger coupling along the c axis. The gap anisotropy was found to significantly decrease for higher Tc samples.

UR - http://www.scopus.com/inward/record.url?scp=33646860157&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646860157&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.73.184523

DO - 10.1103/PhysRevB.73.184523

M3 - Article

AN - SCOPUS:33646860157

VL - 73

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 18

M1 - 184523

ER -

Anisotropic s -wave superconductivity in CaAlSi single crystals from penetration depth measurements

Abstract

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this