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Prog. Theor. Phys. Vol. 55 No. 5 (1976) pp. 1373-1383
Spin Polarization in the Anderson Model
Hiroumi Ishii
Department of Physics, Osaka City University, Sumiyoshi-ku, Osaka
(Received October 20, 1975)
Abstract:
Field-induced conduction electron spin polarization is investigated in the Anderson model on the basis of the Yamada-Yosida theory. In the case of elecron hole symmetry the spin polarization at a distance r from an impurity is expressed by (χH/gµB)cos
2kFr/4πr3 for r > r0 = 4πEFχeven/kF(gµB)2, where χeven denotes the even part of the susceptibility χ with respect to electron correlation U. On the same lines, the interaction energy between two impurities is calculated.
URL :
http://ptp.ipap.jp/link?PTP/55/1373/
DOI : 10.1143/PTP.55.1373
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