SPECTROSCOPY, ELECTRON-ELECTRON INTERACTION, AND LEVEL STATISTICS IN A DISORDERED QUANTUM-DOT

被引：115

作者：

SIVAN, U

MILLIKEN, FP

MILKOVE, K

RISHTON, S

LEE, Y

HONG, JM

BOEGLI, V

KERN, D

DEFRANZA, M

机构：

[1] TECHNION ISRAEL INST TECHNOL,DEPT PHYS,IL-32000 HAIFA,ISRAEL

[2] IBM CORP,THOMAS J WATSON RES CTR,YORKTOWN HTS,NY 10598

来源：

EUROPHYSICS LETTERS | 1994年 / 25卷 / 08期

关键词：

D O I：

10.1209/0295-5075/25/8/008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A novel spectrometer is employed to study the spectrum of heavily doped quantum dots. A single-particle discrete spectrum is found to exist only in close vicinity to the Fermi energy. Levels further away are broadened beyond the average level spacing and merge to form a quasi-continuous spectrum. The broadening is traced to electron-electron interaction in the dot. For the discrete part of the spectrum, level statistics is studied as a function of magnetic field and found to agree remarkably well with recent calculations.

引用

页码：605 / 611

页数：7

共 14 条

[1]

Altshuler B. L., 1985, Electron-electron interactions in disordered systems, P1

[2]

[Anonymous], 1967, RANDOM MATRICES

[3] SEMICLASSICAL ANALYSIS OF SPECTRAL CORRELATIONS IN MESOSCOPIC SYSTEMS [J].