Investigation of a superconducting Mg1-xAlxB2 system by tunneling and microjunction (Andreev) spectroscopies

被引：20

作者：

Ponomarev, YG ^{[1
]}

Kuzmichev, SA

Kadomtseva, NM

Mikheev, MG

Sudakova, MV

Chesnokov, SN

Maksimov, EG

Krasnosvobodtsev, SI

Sevast'yanova, LG

Burdina, KP

Bulychev, BM

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119899, Russia

[2] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 117924, Russia

[3] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia

来源：

JETP LETTERS | 2004年 / 79卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1780557

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A detailed investigation of multiband superconductivity in the Mg1 - xAlxB2 system was carried out by the methods of tunneling and Andreev spectroscopy. Temperature dependences of the superconducting gaps and their variation upon an increase in the degree of disorder and the Al concentration were studied. It is shown that the experimentally observed dependences cannot be explained in detail within the framework of the presently available microscopic theories. (C) 2004 MAIK "Nauka / Interperiodica".

引用

页码：484 / 488

页数：5

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