MAGNETOOPTICAL ABSORPTION-SPECTRA AND SELF-SIMILARITY OF GAAS-(GA,AL)AS QUASI-PERIODIC FIBONACCI SUPERLATTICES UNDER INPLANE MAGNETIC-FIELDS

被引：8

作者：

BRUNOALFONSO, A ^{[1
]}

OLIVEIRA, LE ^{[1
]}

DEDIOSLEYVA, M ^{[1
]}

机构：

[1] UNIV HAVANA, DEPT THEORET PHYS, HAVANA 10400, CUBA

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 04期

关键词：

D O I：

10.1063/1.115180

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A theoretical study of the effects of in-plane magnetic fields on the interband optical absorption spectra of quasiperiodic GaAs-(Ga,Al)As Fibonacci superlattices is presented within the effective-mass approximation. The electron-envelope wave functions and magnetic subbands are obtained by an expansion in harmonic-oscillator wave functions. The theoretical optical absorption spectra are calculated for magnetic fields related by integer powers of the golden mean tau =(1 + root 5)2. It is unambiguously shown that, for magnetic-field values scaled by tau(2n), the corresponding optical absorption spectra essentially exhibit a self-similar behavior, with the width of the peaks increasing linearly with the field, in agreement with the experimental results by D. Toet, M. Potemski, Y. Y. Wang, J. C. Maan, L. Tapter, and K. Ploog [Phys. Rev. Lett. 66, 2128 (1991)]. (C) 1995 American Institute of Physics.

引用

页码：536 / 538

页数：3

共 11 条

[1] EFFECT OF INPLANE MAGNETIC-FIELDS ON THE INTERBAND OPTICAL-ABSORPTION SPECTRA OF GAAS-(GA,AL)AS SUPERLATTICES [J].