Superconducting properties of noncentrosymmetric CaIrSi3

G. Eguchi; D. C. Peets; M. Kriener; S. Maki; E. Nishibori; H. Sawa; Y. Maeno

doi:10.1016/j.physc.2009.11.120

Superconducting properties of noncentrosymmetric CaIrSi₃

G. Eguchi, D. C. Peets, M. Kriener, S. Maki, E. Nishibori, H. Sawa, Y. Maeno

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

13 Citations (Scopus)

Abstract

We report the temperature dependence of resistivity, DC magnetic susceptibility and heat capacity for the noncentrosymmetric superconductor CaIrSi₃. The bulk superconducting transition temperature T _c is about 3.0 K. The upper critical field H_c2 estimated from the H-T phase diagram is 0.44 T, yielding a superconducting coherence length: ξ(0) = 27 nm. The heat capacity exhibits a clear jump at T _c indicating bulk superconductivity and is well described within the BCS framework.

Original language	English
Pages (from-to)	S762-S763
Journal	Physica C: Superconductivity and its applications
Volume	470
Issue number	SUPPL.1
DOIs	https://doi.org/10.1016/j.physc.2009.11.120
Publication status	Published - 2010 Dec
Externally published	Yes

Keywords

CaIrSi
Noncentrosymmetric superconductor
Silicide
Upper critical field

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2009.11.120

Cite this

@article{fe765743205e44e3ab9d808fcfd9a894,

title = "Superconducting properties of noncentrosymmetric CaIrSi3",

abstract = "We report the temperature dependence of resistivity, DC magnetic susceptibility and heat capacity for the noncentrosymmetric superconductor CaIrSi3. The bulk superconducting transition temperature T c is about 3.0 K. The upper critical field Hc2 estimated from the H-T phase diagram is 0.44 T, yielding a superconducting coherence length: ξ(0) = 27 nm. The heat capacity exhibits a clear jump at T c indicating bulk superconductivity and is well described within the BCS framework.",

keywords = "CaIrSi, Noncentrosymmetric superconductor, Silicide, Upper critical field",

author = "G. Eguchi and Peets, {D. C.} and M. Kriener and S. Maki and E. Nishibori and H. Sawa and Y. Maeno",

note = "Funding Information: We thank S. Yonezawa, H. Takatsu and S. Kittaka for fruitful discussions and technical support and C. Michioka and K. Yoshimura for useful advise and discussion. This work was supported by Grants-in-Aid for the Global COE “The Next Generation of Physics, Spun from Universality and Emergence” from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan. MK and DP are financially supported as JSPS Postdoctoral Fellows.",

year = "2010",

month = dec,

doi = "10.1016/j.physc.2009.11.120",

language = "English",

volume = "470",

pages = "S762--S763",

journal = "Physica C: Superconductivity and its Applications",

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T1 - Superconducting properties of noncentrosymmetric CaIrSi3

AU - Eguchi, G.

AU - Peets, D. C.

AU - Kriener, M.

AU - Maki, S.

AU - Nishibori, E.

AU - Sawa, H.

AU - Maeno, Y.

N1 - Funding Information: We thank S. Yonezawa, H. Takatsu and S. Kittaka for fruitful discussions and technical support and C. Michioka and K. Yoshimura for useful advise and discussion. This work was supported by Grants-in-Aid for the Global COE “The Next Generation of Physics, Spun from Universality and Emergence” from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan. MK and DP are financially supported as JSPS Postdoctoral Fellows.

PY - 2010/12

Y1 - 2010/12

N2 - We report the temperature dependence of resistivity, DC magnetic susceptibility and heat capacity for the noncentrosymmetric superconductor CaIrSi3. The bulk superconducting transition temperature T c is about 3.0 K. The upper critical field Hc2 estimated from the H-T phase diagram is 0.44 T, yielding a superconducting coherence length: ξ(0) = 27 nm. The heat capacity exhibits a clear jump at T c indicating bulk superconductivity and is well described within the BCS framework.

AB - We report the temperature dependence of resistivity, DC magnetic susceptibility and heat capacity for the noncentrosymmetric superconductor CaIrSi3. The bulk superconducting transition temperature T c is about 3.0 K. The upper critical field Hc2 estimated from the H-T phase diagram is 0.44 T, yielding a superconducting coherence length: ξ(0) = 27 nm. The heat capacity exhibits a clear jump at T c indicating bulk superconductivity and is well described within the BCS framework.

KW - CaIrSi

KW - Noncentrosymmetric superconductor

KW - Silicide

KW - Upper critical field

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