Magnetic Field Dependence of the Low-Temperature Specific Heat of the Borocarbide Superconductor LuNi2B2C

Minoru Nohara; Masanobu Isshiki; Hidenori Takagi; Robert J. Cava

doi:10.1143/JPSJ.66.1888

Magnetic Field Dependence of the Low-Temperature Specific Heat of the Borocarbide Superconductor LuNi₂B₂C

Minoru Nohara, Masanobu Isshiki, Hidenori Takagi, Robert J. Cava

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

101 Citations (Scopus)

Abstract

The low temperature specific heat of the borocarbide superconductor LuNi₂B₂C was measured under various magnetic fields (H) up to 8 T. The coefficient of the T-linear term in specific heat in the mixed state shows marked deviations from the H-linear dependence expected for conventional superconductors and is found to obey a √H dependence. A good description of the data can be obtained by assuming the presence of a zero-gap region along lines on the Fermi surface, indicating the possibility of unconventional pairing in the superconducting state of the borocarbides.

Original language	English
Pages (from-to)	1888-1891
Number of pages	4
Journal	journal of the physical society of japan
Volume	66
Issue number	7
DOIs	https://doi.org/10.1143/JPSJ.66.1888
Publication status	Published - Jul 1997
Externally published	Yes

Keywords

Borocarbide superconductors
LuNiBC
Quasiparticle states
Specific heat

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.66.1888

Fingerprint Dive into the research topics of 'Magnetic Field Dependence of the Low-Temperature Specific Heat of the Borocarbide Superconductor LuNi<sub>2</sub>B<sub>2</sub>C'. Together they form a unique fingerprint.

Cite this

@article{f5a12605b8ba4f6fb23c18d1504f39e2,

title = "Magnetic Field Dependence of the Low-Temperature Specific Heat of the Borocarbide Superconductor LuNi2B2C",

abstract = "The low temperature specific heat of the borocarbide superconductor LuNi2B2C was measured under various magnetic fields (H) up to 8 T. The coefficient of the T-linear term in specific heat in the mixed state shows marked deviations from the H-linear dependence expected for conventional superconductors and is found to obey a √H dependence. A good description of the data can be obtained by assuming the presence of a zero-gap region along lines on the Fermi surface, indicating the possibility of unconventional pairing in the superconducting state of the borocarbides.",

keywords = "Borocarbide superconductors, LuNiBC, Quasiparticle states, Specific heat",

author = "Minoru Nohara and Masanobu Isshiki and Hidenori Takagi and Cava, {Robert J.}",

year = "1997",

month = jul,

doi = "10.1143/JPSJ.66.1888",

language = "English",

volume = "66",

pages = "1888--1891",

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

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "7",

}

TY - JOUR

T1 - Magnetic Field Dependence of the Low-Temperature Specific Heat of the Borocarbide Superconductor LuNi2B2C

AU - Nohara, Minoru

AU - Isshiki, Masanobu

AU - Takagi, Hidenori

AU - Cava, Robert J.

PY - 1997/7

Y1 - 1997/7

N2 - The low temperature specific heat of the borocarbide superconductor LuNi2B2C was measured under various magnetic fields (H) up to 8 T. The coefficient of the T-linear term in specific heat in the mixed state shows marked deviations from the H-linear dependence expected for conventional superconductors and is found to obey a √H dependence. A good description of the data can be obtained by assuming the presence of a zero-gap region along lines on the Fermi surface, indicating the possibility of unconventional pairing in the superconducting state of the borocarbides.

AB - The low temperature specific heat of the borocarbide superconductor LuNi2B2C was measured under various magnetic fields (H) up to 8 T. The coefficient of the T-linear term in specific heat in the mixed state shows marked deviations from the H-linear dependence expected for conventional superconductors and is found to obey a √H dependence. A good description of the data can be obtained by assuming the presence of a zero-gap region along lines on the Fermi surface, indicating the possibility of unconventional pairing in the superconducting state of the borocarbides.

KW - Borocarbide superconductors

KW - LuNiBC

KW - Quasiparticle states

KW - Specific heat

UR - http://www.scopus.com/inward/record.url?scp=0031523086&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031523086&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.66.1888

DO - 10.1143/JPSJ.66.1888

M3 - Article

AN - SCOPUS:0031523086

VL - 66

SP - 1888

EP - 1891

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 7

ER -