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ID 34156
フルテキストURL
著者
Adachi, H Okayama University
Miranovic, P University of Montenegro
Ichioka, M Okayama University
Machida, K Okayama University
抄録

The effects of anisotropic gap structures on a diamagnetic response are investigated in order to demonstrate that the field-angle-resolved magnetization [M-L (chi)] measurement can be used as a spectroscopic method to detect gap structures. Our microscopic calculation based on the quasiclassical Eilenberger formalism reveals that M-L (chi) in a superconductor with a fourfold gap displays a fourfold oscillation reflecting the gap and Fermi-surface anisotropies, and the sign of this oscillation changes at a field between H-c1 and H-c2. As a prototype of unconventional superconductors, magnetization data for borocarbides are also discussed.

キーワード
ginzburg-landau equations
density-of-states
virial-theorem
magnetization
dependence
symmetry
luni2b2c
yni2b2c
備考
Digital Object Identifer:10.1103/PhysRevLett.94.067007
Published with permission from the copyright holder. This is the institute's copy, as published in Physical Review Letters, February 2005, Volume 94, Issue 6, Pages 4.
Publisher URL:http://dx.doi.org/10.1103/PhysRevLett.94.067007
Direct access to Thomson Web of Science record
Copyright © 2005 The American Physical Society. All rights reserved.
発行日
2005-2
出版物タイトル
Physical Review Letters
94巻
6号
資料タイプ
学術雑誌論文
言語
English
査読
有り
DOI
Web of Sience KeyUT
Submission Path
physics_general/8