Ferromagnetism in the one-dimensional Hubbard model with orbital degeneracy: From low to high electron density | |
Article | |
关键词: METAL-INSULATOR-TRANSITION; GROUND-STATES; MOMENTUM DISTRIBUTION; BAND MODEL; SYSTEMS; EXCHANGE; | |
DOI : 10.1103/PhysRevB.65.224403 | |
来源: SCIE |
【 摘 要 】
We studied ferromagnetism in the one-dimensional Hubbard model with doubly degenerate atomic orbitals by means of the density-matrix renormalization-group method and obtained the ground-state phase diagrams. It was found that ferromagnetism is stable from low to high (0
【 授权许可】
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