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Prog. Theor. Phys. Vol. 54 No. 5 (1975) pp. 1289-1298
The Antiferromagnetic Ground State of a Half-Filled Hubbard Model
Kenn Kubo and
Mamoru Uchinami
Department of Physics, Tokyo University of Education, Toko
(Received February 8, 1975)
Abstract:
The effect of electron correlations on the antiferromagnetic ground state of a half-filled Hubbard model is examined by means of two approximate ways; Gutzwiller's variational method and the perturbational method. Both results by the two ways indicate that the antiferromagnetism is not destroyed by correlation effect in the limit of weak interaction.
URL :
http://ptp.ipap.jp/link?PTP/54/1289/
DOI : 10.1143/PTP.54.1289
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Citing Article(s) :
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Progress of Theoretical Physics Vol. 56 No. 3 (1976) pp. 717-723
:
-
Metal-Insulator Transition Due to Electron Correlation
-
Arisato Kawabata
