Coulomb Gaps in One-Dimensional Spin-Polarized Electron Systems

Дата и время публикации : 1996-08-12T20:09:06Z

Авторы публикации и институты :
Gun Sang Jeon
M. Y. Choi
S. -R. Eric Yang

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 4 pages, revtex, 4 figures, to be published in Phys. Rev. B as a Rapid Communication
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: We investigate the density of states (DOS) near the Fermi energy of one-dimensional spin-polarized electron systems in the quantum regime where the localization length is comparable to or larger than the inter-particle distance. The Wigner lattice gap of such a system, in the presence of weak disorder, can occur precisely at the Fermi energy, coinciding with the Coulomb gap in position. The interplay between the two is investigated by treating the long-range Coulomb interaction and the random disorder potential in a self-consistent Hartree-Fock approximation. The DOS near the Fermi energy is found to be well described by a power law whose exponent decreases with increasing disorder strength.

Category: Physics