de Haas-van!Alphen effect investigations of the electronic structure of pure and aluminum-doped MgB2

被引：14

作者：

Carrington, A.

Yelland, E. A.

Fletcher, J. D.

Cooper, J. R.

机构：

[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[2] Univ Cambridge, Dept Phys, Cambridge CB3 0HE, England

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2007年 / 456卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

MgB2; Fermi surface; band structure; quantum oscillations; SINGLE-CRYSTALS; FERMI-SURFACE; SUPERCONDUCTIVITY; STATES;

D O I：

10.1016/j.physc.2007.01.027

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Our understanding of the superconducting properties of MgB2 is strongly linked to our knowledge of its electronic structure. In this paper we review experimental measurements of the Fermi surface parameters of pure and M-doped MgB2 using the de Haas-van Alphen (dHvA) effect. In general, the measurements are in excellent agreement with the theoretical predictions of the electronic structure, including the strength of the electron-phonon coupling on each Fermi surface sheet. For the At doped samples, we are able to measure how the band structure changes with doping. These results are in excellent agreement with calculations based on the virtual crystal approximation. We also review work on the dHvA effect in the superconducting state. (c) 2007 Elsevier B.V. All rights reserved.

引用

收藏

页码：92 / 101

页数：10

相关论文

共 49 条

[21] dHvA effect and superconductivity of MgB2 detected by AC torque method down to the fields below Hc2 [J].

Isshiki, T ;

Maruyama, H ;

Kimura, N ;

Nojima, T ;

Ochiai, A ;

Aoki, H .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2005, 417 (3-4) :110-118

[22] Quantitative investigation of the deHaas-vanAlphen effect in the superconducting state [J].

Janssen, TJBM ;

Haworth, C ;

Hayden, SM ;

Meeson, P ;

Springford, M ;

Wasserman, A .

PHYSICAL REVIEW B, 1998, 57 (18) :11698-11712

[23] Al substitution in MgB2 crystals:: Influence on superconducting and structural properties -: art. no. 174506 [J].

Karpinski, J ;

Zhigadlo, ND ;

Schuck, G ;

Kazakov, SM ;

Batlogg, B ;

Rogacki, K ;

Puzniak, R ;

Jun, J ;

Müller, E ;

Wägli, P ;

Gonnelli, R ;

Daghero, D ;

Ummarino, GA ;

Stepanov, VA .

PHYSICAL REVIEW B, 2005, 71 (17)

[24] MgB2 and Mg1-xAlxB2 single crystals:: high pressure growth and physical properties [J].

Karpinski, J ;

Kazakov, SM ;

Jun, J ;

Zhigadlo, ND ;

Angst, M ;

Puzniak, R ;

Wisniewski, A .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2004, 408 :81-82

[25] Carbon substitution in MgB2 single crystals:: Structural and superconducting properties -: art. no. 024533 [J].

Kazakov, SM ;

Puzniak, R ;

Rogacki, K ;

Mironov, AV ;

Zhigadlo, ND ;

Jun, J ;

Soltmann, C ;

Batlogg, B ;

Karpinski, J .

PHYSICAL REVIEW B, 2005, 71 (02)

[26] Influence of Al doping on the critical fields and gap values in magnesium diboride single crystals [J].

Klein, T. ;

Lyard, L. ;

Marcus, J. ;

Marcenat, C. ;

Szabo, P. ;

Hol'anova, Z. ;

Samuely, P. ;

Kang, B. W. ;

Kim, H-J. ;

Lee, H-S. ;

Lee, H-K. ;

Lee, S-I. .

PHYSICAL REVIEW B, 2006, 73 (22)

[27] UNIAXIAL SUPERCONDUCTING PARTICLE IN INTERMEDIATE MAGNETIC-FIELDS [J].

KOGAN, VG .

PHYSICAL REVIEW B, 1988, 38 (10) :7049-7050

[28]

Kortus J, 2001, PHYS REV LETT, V86, P4656, DOI 10.1103/PhysRevLett.86.4656

[29] Band filling and interband scattering effects in MgB2:: Carbon versus aluminum doping -: art. no. 027002 [J].

Kortus, J ;

Dolgov, OV ;

Kremer, RK ;

Golubov, AA .

PHYSICAL REVIEW LETTERS, 2005, 94 (02)

[30] Beyond Eliashberg superconductivity in MgB2:: Anharmonicity, two-phonon scattering, and multiple gaps -: art. no. 087005 [J].

Liu, AY ;

Mazin, II ;

Kortus, J .

PHYSICAL REVIEW LETTERS, 2001, 87 (08) :87005-1

← 1 2 3 4 5 →