A heat capacity anomaly of the superconducting transition in a ferromagnetic superconductor UGe2

Naoyuki Tateiwa; Tatsuo C. Kobayashi; Kiichi Amaya; Yoshinori Haga; Rikio Settai; Yoshichika Onuki

doi:10.1016/S0921-4534(02)02650-3

A heat capacity anomaly of the superconducting transition in a ferromagnetic superconductor UGe₂

Naoyuki Tateiwa, Tatsuo C. Kobayashi, Kiichi Amaya, Yoshinori Haga, Rikio Settai, Yoshichika Onuki

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

We performed the heat capacity, C(T), measurement under high pressure on a ferromagnetic superconductor UGe₂, in order to study the pressure dependence of the anomaly in C(T) associated with the superconducting transition. A clear peak appears only around a critical pressure P*_c where an another transition temperature T* becomes 0 K. This result suggests that a bulk superconducting phase exists in the narrower pressure region around P*_c than those clarified by previous studies.

Original language	English
Pages (from-to)	527-528
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	388-389
DOIs	https://doi.org/10.1016/S0921-4534(02)02650-3
Publication status	Published - May 2003
Externally published	Yes
Event	proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: Aug 20 2002 → Aug 27 2002

Keywords

Ferromagnetism
Superconductivity
UGe

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/S0921-4534(02)02650-3

Cite this

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title = "A heat capacity anomaly of the superconducting transition in a ferromagnetic superconductor UGe2",

abstract = "We performed the heat capacity, C(T), measurement under high pressure on a ferromagnetic superconductor UGe2, in order to study the pressure dependence of the anomaly in C(T) associated with the superconducting transition. A clear peak appears only around a critical pressure P*c where an another transition temperature T* becomes 0 K. This result suggests that a bulk superconducting phase exists in the narrower pressure region around P*c than those clarified by previous studies.",

keywords = "Ferromagnetism, Superconductivity, UGe",

author = "Naoyuki Tateiwa and Kobayashi, {Tatsuo C.} and Kiichi Amaya and Yoshinori Haga and Rikio Settai and Yoshichika Onuki",

note = "Funding Information: This work was financially supported by the Grant-in-Aid for COE research (no. 10CE2004) of the Ministry of Education, Culture, Sports, Science and Technology.; proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

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TY - JOUR

T1 - A heat capacity anomaly of the superconducting transition in a ferromagnetic superconductor UGe2

AU - Tateiwa, Naoyuki

AU - Kobayashi, Tatsuo C.

AU - Amaya, Kiichi

AU - Haga, Yoshinori

AU - Settai, Rikio

AU - Onuki, Yoshichika

N1 - Funding Information: This work was financially supported by the Grant-in-Aid for COE research (no. 10CE2004) of the Ministry of Education, Culture, Sports, Science and Technology.

PY - 2003/5

Y1 - 2003/5

N2 - We performed the heat capacity, C(T), measurement under high pressure on a ferromagnetic superconductor UGe2, in order to study the pressure dependence of the anomaly in C(T) associated with the superconducting transition. A clear peak appears only around a critical pressure P*c where an another transition temperature T* becomes 0 K. This result suggests that a bulk superconducting phase exists in the narrower pressure region around P*c than those clarified by previous studies.

AB - We performed the heat capacity, C(T), measurement under high pressure on a ferromagnetic superconductor UGe2, in order to study the pressure dependence of the anomaly in C(T) associated with the superconducting transition. A clear peak appears only around a critical pressure P*c where an another transition temperature T* becomes 0 K. This result suggests that a bulk superconducting phase exists in the narrower pressure region around P*c than those clarified by previous studies.

KW - Ferromagnetism

KW - Superconductivity

KW - UGe

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DO - 10.1016/S0921-4534(02)02650-3

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AN - SCOPUS:0038137594

SN - 0921-4534

VL - 388-389

SP - 527

EP - 528

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

T2 - proceedings of the 23rd international conference on low temper

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