Disorder-induced spin polarization in a restricted geometries

Article

关键词: U=INFINITY HUBBARD-MODEL;    COULOMB-BLOCKADE REGIME;    NAGAOKA STATE;    FIELD THEORY;    FERROMAGNETISM;    INSTABILITY;    FLUCTUATIONS;    STATISTICS;    LATTICE;    METALS;   

DOI  :  10.1103/PhysRevB.60.15261

来源: SCIE

【 摘 要 】

We study the influence of disorder on the magnetic properties of the :ground state for restricted geometries. We find that for two-dimensional systems disorder enhances the spin polarization of the system. The tendency of disorder to enhance magnetism in the ground state may be relevant:td recent experimental observations of Spin polarized ground states in quantum dots and small metal gains. [S0163-1829(99)05145-0].

【 授权许可】

Free