Progress of Theoretical Physics, volume 40, issue 3, pages 435-451
Classical Spins in Superconductors
Publication type: Journal Article
Publication date: 1968-09-01
Journal:
Progress of Theoretical Physics
Quartile SCImago
— Quartile WOS
—
Impact factor: —
ISSN: 0033068X, 13474081
Physics and Astronomy (miscellaneous)
Abstract
It is shown that there exists a localized excited state in the energy gap in a superconductor with a classical spin. At finite concentration localized excited states around classical spins form an "impurity band". The process of growth of the "impurity band" and its effects on observable quantities are investigated. § I. Introduction Since the monumental paper by Abrikosov and Gorkov 1 ) many works have been done experimentally and theoretically concerning the thermodynamic and transport properties of superconductors with small amount of paramagnetic impUrItIes. Recently several authors 2 ),3) have been interested in whe'ther loca lized excited states in the energy gap exist in a superconductor with a paramag netic impurity or not. As is well known, a paramagnetic impurity in a normal metal or a superconductor brings about the so-called Kondo effect 4 ) (a kind of quantum mechanical effects of spins) and this makes complete solutions of the problem quite difficult. In this paper we restrict our discussions to the classical spins in supercon ductors. In the s~d interaction between conduction electrons and a localized spin
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- We do not take into account publications without a DOI.
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TY - JOUR
DO - 10.1143/PTP.40.435
UR - https://doi.org/10.1143/PTP.40.435
TI - Classical Spins in Superconductors
T2 - Progress of Theoretical Physics
AU - SHIBA, Hiroyuki
PY - 1968
DA - 1968/09/01
PB - Oxford University Press
SP - 435-451
IS - 3
VL - 40
SN - 0033-068X
SN - 1347-4081
ER -
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@article{1968_SHIBA,
author = {Hiroyuki SHIBA},
title = {Classical Spins in Superconductors},
journal = {Progress of Theoretical Physics},
year = {1968},
volume = {40},
publisher = {Oxford University Press},
month = {sep},
url = {https://doi.org/10.1143/PTP.40.435},
number = {3},
pages = {435--451},
doi = {10.1143/PTP.40.435}
}
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SHIBA, Hiroyuki. “Classical Spins in Superconductors.” Progress of Theoretical Physics, vol. 40, no. 3, Sep. 1968, pp. 435-451. https://doi.org/10.1143/PTP.40.435.