Stark ladders in piezoelectric superlattices.

被引：0

作者：

Whittaker, DM ^{[1
]}

Peggs, DW ^{[1
]}

Hogg, RA ^{[1
]}

Skolnick, MS ^{[1
]}

Grey, R ^{[1
]}

Mowbray, DJ ^{[1
]}

Rees, GJ ^{[1
]}

机构：

[1] UNIV SHEFFIELD,DEPT ELECTR & ELECT ENGN,SHEFFIELD S1 3JD,S YORKSHIRE,ENGLAND

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1995年 / 17卷 / 11-12期

关键词：

D O I：

10.1007/BF02457279

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe an experimental and theoretical investigation of Wannier-Stark ladders in the optical spectra of (111)B InGaAs/GaAs piezoelectric superlattices. A unique feature of these structures is that an external electric field can be used to produce a flat superlattice-that is zero overall potential drop per period-in which there are large, opposing fields in the well and barrier. These fields cause a spatial separation of the electron and hole wave functions in the axial direction, leading to Stark ladders which are intermediate between Type I (electrons and holes together) and Type II (electrons and holes separated by half a period) in character.

引用

页码：1775 / 1779

页数：5

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