期刊论文详细信息
Lattice dependence of saturated ferromagnetism in the Hubbard model | |
Article | |
关键词: SINGLE SPIN-FLIP; NAGAOKA STATE; SQUARE LATTICE; GROUND-STATES; LINE GRAPHS; INSTABILITY; STABILITY; D=INFINITY; PARTICLE; FERMIONS; | |
DOI : 10.1103/PhysRevB.56.13960 | |
来源: SCIE |
【 摘 要 】
We investigate the instability of the saturated ferromagnetic ground state (Nagaoka state) in the Hubbard model on various lattices in dimensions d=2 and d=3. A variational resolvent approach is developed for the Nagaoka instability both for U=infinity and for U
Free 【 授权许可】