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Titolo:
Quasi-two-dimensional Fermi surfaces and the de Haas-van Alphen oscillation in both the normal and superconducting mixed states of CeCoIn5
Autore:
Settai, R; Shishido, H; Ikeda, S; Murakawa, Y; Nakashima, M; Aoki, D; Haga, Y; Harima, H; Onuki, Y;
Indirizzi:
Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan Osaka Univ Toyonaka Osaka Japan 5600043 i, Toyonaka, Osaka 5600043, Japan Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, JapanJapan Atom Energy Res Inst Tokai Ibaraki Japan 3191195 aki 3191195, Japan Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan Osaka Univ Ibaraki Osaka Japan 5670047 Res, Ibaraki, Osaka 5670047, Japan
Titolo Testata:
JOURNAL OF PHYSICS-CONDENSED MATTER
fascicolo: 27, volume: 13, anno: 2001,
pagine: L627 - L634
SICI:
0953-8984(20010709)13:27<L627:QFSATD>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Letter
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Settai, R Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan Osaka Univ Toyonaka Osaka Japan 5600043 a, Osaka 5600043, Japan
Citazione:
R. Settai et al., "Quasi-two-dimensional Fermi surfaces and the de Haas-van Alphen oscillation in both the normal and superconducting mixed states of CeCoIn5", J PHYS-COND, 13(27), 2001, pp. L627-L634

Abstract

We observed de Haas-van Alphen (dHvA) oscillation in both the normal and superconducting mixed states of a heavy-fermion superconductor CeCoIn5. The Fermi surfaces are found to consist of nearly cylindrical Fermi surfaces and small ellipsoidal ones, reflecting the unique tetragonal crystal structure. The detected cyclotron masses of 5-87 m(0) for these Fermi surfaces are extremely large, and correspond to a large electronic specific heat coefficient of about 1000 mi K-2 mol(-1). The cyclotron masses are also found to be field dependent in both the normal and mixed states.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 09:50:22