OBSERVATION OF A LARGE-SCALE SHEETLIKE CURRENT FILAMENT IN A THIN N-GAAS LAYER

被引：19

作者：

AOKI, K ^{[1
]}

RAU, U ^{[1
]}

PEINKE, J ^{[1
]}

PARISI, J ^{[1
]}

HUEBENER, RP ^{[1
]}

机构：

[1] UNIV TUBINGEN,INST PHYS,LEHRSTUHL EXPTL PHYS 2,W-7400 TUBINGEN 1,GERMANY

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1990年 / 59卷 / 02期

关键词：

D O I：

10.1143/JPSJ.59.420

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spatial patterns of a large-scale sheetlike current filament formed during low-temperature avalanche breakdown have been investigated in a thin epitaxial n-GaAs layer using the low-temperature scanning electron microscope. The sheetlike current filament was nucleated between planar-type ohmic contacts due to impact ionization of neutral shallow donors. The width of the current filament (200 ~ 700 µm) was measured as a function of the sample voltage in the postbreakdown regime. A turbulent pattern observed in the beam-induced firing wave instability has also been measured. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

引用

页码：420 / 423

页数：4

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