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Title: Instability of the Nagaoka ferromagnetic state of the two-dimensional infinite-{ital U} Hubbard model

Abstract

A variational wave function with spin zero is presented for the infinite-{ital U} Hubbard model on a square lattice with the hole concentration {delta}=0.5. We find that the Nagaoka ferromagnetic state is unstable for this case in the thermodynamic limit. Some discussion about this method for other hole concentrations is given.

Authors:
 [1]
  1. Chinese Center of Advanced Science Technology (World Laboratory), P.O. Box 8730, Beijing 100080 (China)|[Department of Physics, Nankai University, Tianjin 300071 (China)
Publication Date:
OSTI Identifier:
142609
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 49; Journal Issue: 10; Other Information: PBD: 1 Mar 1994
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; HUBBARD MODEL; GROUND STATES; HIGH-TC SUPERCONDUCTORS; TWO-DIMENSIONAL CALCULATIONS; VARIATIONAL METHODS; FERROMAGNETISM; INSTABILITY; WAVE FUNCTIONS; CALCULATION METHODS

Citation Formats

Song, Z. Instability of the Nagaoka ferromagnetic state of the two-dimensional infinite-{ital U} Hubbard model. United States: N. p., 1994. Web. doi:10.1103/PhysRevB.49.6723.
Song, Z. Instability of the Nagaoka ferromagnetic state of the two-dimensional infinite-{ital U} Hubbard model. United States. doi:10.1103/PhysRevB.49.6723.
Song, Z. Tue . "Instability of the Nagaoka ferromagnetic state of the two-dimensional infinite-{ital U} Hubbard model". United States. doi:10.1103/PhysRevB.49.6723.
@article{osti_142609,
title = {Instability of the Nagaoka ferromagnetic state of the two-dimensional infinite-{ital U} Hubbard model},
author = {Song, Z.},
abstractNote = {A variational wave function with spin zero is presented for the infinite-{ital U} Hubbard model on a square lattice with the hole concentration {delta}=0.5. We find that the Nagaoka ferromagnetic state is unstable for this case in the thermodynamic limit. Some discussion about this method for other hole concentrations is given.},
doi = {10.1103/PhysRevB.49.6723},
journal = {Physical Review, B: Condensed Matter},
number = 10,
volume = 49,
place = {United States},
year = {1994},
month = {3}
}