Disorder-induced spin polarization in a restricted geometries

被引：12

作者：

Eisenberg, E ^{[1
]}

Berkovits, R ^{[1
]}

机构：

[1] Bar Ilan Univ, Dept Phys, Minerva Ctr Phys Mesoscop, Factals & Neural Networks, IL-52900 Ramat Gan, Israel

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.60.15261

中图分类号：

T [工业技术];

学科分类号：

08 ;

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].

引用

页码：15261 / 15265

页数：5

共 38 条

[31] Statistics of conductance oscillations of a quantum dot in the Coulomb-blockade regime
Simmel, F
Heinzel, T
Wharam, DA
[J]. EUROPHYSICS LETTERS, 1997, 38 (02): : 123 - 128
[32] Statistics of the Coulomb-blockade peak spacings of a silicon quantum dot
Simmel, F
Abusch-Magder, D
Wharam, DA
Kastner, MA
Kotthaus, JP
[J]. PHYSICAL REVIEW B, 1999, 59 (16) : 10441 - 10444
[33] Mesoscopic fluctuations in the ground state energy of disordered quantum dots
Sivan, U
Berkovits, R
Aloni, Y
Prus, O
Auerbach, A
BenYoseph, G
[J]. PHYSICAL REVIEW LETTERS, 1996, 77 (06) : 1123 - 1126
[34] Electron-electron correlations in carbon nanotubes
Tans, SJ
Devoret, MH
Groeneveld, RJA
Dekker, C
[J]. NATURE, 1998, 394 (6695) : 761 - 764
[35] INVARIANCE HYPOTHESIS + HIGHER CORRELATIONS OFHAMILTONIAN MATRIX ELEMENTS
ULLAH, N
[J]. NUCLEAR PHYSICS, 1964, 58 (01): : 65 - &
[36] FERROMAGNETISM IN THE HUBBARD-MODEL
VONDERLINDEN, W
EDWARDS, DM
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (26) : 4917 - 4940
[37] Wurth P, 1996, ANN PHYS-LEIPZIG, V5, P148
[38] Zaitsev R. O., 1996, Low Temperature Physics, V22, P974

← 1 2 3 4 →