Superconductivity in MgB2

被引：21

作者：

Akimitsu, J ^{[1
]}

Muranaka, T ^{[1
]}

机构：

[1] Aoyama Gakuin Univ, Dept Phys, Setagaya Ku, Tokyo 1578572, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 388卷

关键词：

superconductivity; boride compounds; MgB2; electron-phonon interaction;

D O I：

10.1016/S0921-4534(02)02669-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We recently discovered that the intermetallic compound magnesium diboride (MgB2) exhibits the highest superconducting transition temperature (T-c = 39 K) of all the metallic superconductors. In this paper we report on the basic superconducting characteristics of MgB2 and the current status of the research for the unanswered problem in this superconductivity. Especially, we review the several reports for the superconducting gap (Delta) by the spectroscopic measurements. Moreover we introduce the research into its anisotropic parameter (gamma), which is important for the understanding of this superconducting states in this material. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：98 / 102

页数：5

共 30 条

[1] Superconductivity of MgB2: Covalent bonds driven metallic [J].

An, J.M., 2001, American Institute of Physics Inc. (86)

[2] Specific heat of Mg11B2:: Evidence for a second energy cap -: art. no. 047001 [J].

Bouquet, F ;

Fisher, RA ;

Phillips, NE ;

Hinks, DG ;

Jorgensen, JD .

PHYSICAL REVIEW LETTERS, 2001, 87 (04) :47001-1

[3] Boron isotope effect in superconducting MgB2 [J].

Bud'ko, SL ;

Lapertot, G ;

Petrovic, C ;

Cunningham, CE ;

Anderson, N ;

Canfield, PC .

PHYSICAL REVIEW LETTERS, 2001, 86 (09) :1877-1880

[4] SUPERCONDUCTIVITY NEAR 30-K WITHOUT COPPER - THE BA0.6K0.4BIO3 PEROVSKITE [J].

CAVA, RJ ;

BATLOGG, B ;

KRAJEWSKI, JJ ;

FARROW, R ;

RUPP, LW ;

WHITE, AE ;

SHORT, K ;

PECK, WF ;

KOMETANI, T .

NATURE, 1988, 332 (6167) :814-816

[5] Domain wall relaxation, creep, sliding, and switching in superferromagnetic discontinuous Co80Fe20/Al2O3 multilayers -: art. no. 137203 [J].

Chen, X ;

Sichelschmidt, O ;

Kleemann, W ;

Petracic, O ;

Binek, C ;

Sousa, JB ;

Cardoso, S ;

Freitas, PP .

PHYSICAL REVIEW LETTERS, 2002, 89 (13)

[6] Two-gap state density in MgB2:: A true bulk property or a proximity effect?: art. no. 177008 [J].

Giubileo, F ;

Roditchev, D ;

Sacks, W ;

Lamy, R ;

Thanh, DX ;

Klein, J ;

Miraglia, S ;

Fruchart, D ;

Marcus, J ;

Monod, P .

PHYSICAL REVIEW LETTERS, 2001, 87 (17) :177008-1

[7]

GONNELLI RS, CONDMAT0208060

[8] The complex nature of superconductivity in MgB2 as revealed by the reduced total isotope effect [J].

Hinks, DG ;

Claus, H ;

Jorgensen, JD .

NATURE, 2001, 411 (6836) :457-460

[9] Hole superconductivity in MgB2:: a high Tc cuprate without Cu [J].

Hirsch, JE .

PHYSICS LETTERS A, 2001, 282 (06) :392-398

[10] Hole carrier in MgB2 characterized by Hall measurements [J].

Kang, WN ;

Jung, CU ;

Kim, KHP ;

Park, MS ;

Lee, SY ;

Kim, HJ ;

Choi, EM ;

Kim, KH ;

Kim, MS ;

Lee, SI .

APPLIED PHYSICS LETTERS, 2001, 79 (07) :982-984

← 1 2 3 →