DIFFERENTIAL ABSORPTION-SPECTROSCOPY OF CHARGE-DISTRIBUTIONS IN DOUBLE-BARRIER TUNNEL STRUCTURES

被引：12
作者：
BARJOSEPH, I
WOODWARD, TK
CHEMLA, DS
SIVCO, D
CHO, AY
机构：
[1] AT&T BELL LABS,HOLMDEL,NJ 07733
[2] AT&T BELL LABS,MURRAY HILL,NJ 07974
来源：
PHYSICAL REVIEW B | 1990年 / 41卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.41.3264
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Differential absorption spectroscopy is used to determine the charge density in InxGa1-xAs/InxAl1-xAs double-barrier tunneling structures. We show the formation of accumulation and depletion regions on either side of the double barrier, and measure with an absolute calibration the accumulated charge in the 45-AI quantum-well region of the structures. Peak charge densities 5.4×1010 cm-1 and 3.9×1010 cm-2 are measured for barrier thicknesses of 70 and 56 AI, respectively. The corresponding calculated transit times are 70 and 20 ps. © 1990 The American Physical Society.
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页码：3264 / 3267
页数：4
相关论文
共 22 条
[1]  
Bar Joseph I., 1987, PHYS REV LETT, V59, P1357
[2]  
CAPASSO F, 1989, INTEGRATED CIRCUITS
[3]   RESONANT TUNNELING IN SEMICONDUCTOR DOUBLE BARRIERS [J].
CHANG, LL ;
ESAKI, L ;
TSU, R .
APPLIED PHYSICS LETTERS, 1974, 24 (12) :593-595
[4]   ROOM-TEMPERATURE EXCITONIC NONLINEAR ABSORPTION AND REFRACTION IN GAAS/ALGAAS MULTIPLE QUANTUM WELL STRUCTURES [J].
CHEMLA, DS ;
MILLER, DAB ;
SMITH, PW ;
GOSSARD, AC ;
WIEGMANN, W .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1984, 20 (03) :265-275
[5]   MODULATION OF ABSORPTION IN FIELD-EFFECT QUANTUM WELL STRUCTURES [J].
CHEMLA, DS ;
BARJOSEPH, I ;
KUO, JM ;
CHANG, TY ;
KLINGSHIRN, C ;
LIVESCU, G ;
MILLER, DAB .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1988, 24 (08) :1664-1676
[6]   PHOTOLUMINESCENT DETERMINATION OF CHARGE ACCUMULATION IN RESONANT TUNNELING STRUCTURES [J].
FRENSLEY, WR ;
REED, MA ;
LUSCOMBE, JH .
PHYSICAL REVIEW LETTERS, 1989, 62 (10) :1207-1207
[7]   RESONANT TUNNELING IN MAGNETIC-FIELDS - EVIDENCE FOR SPACE-CHARGE BUILDUP [J].
GOLDMAN, VJ ;
TSUI, DC ;
CUNNINGHAM, JE .
PHYSICAL REVIEW B, 1987, 35 (17) :9387-9390
[8]   OBSERVATION OF INTRINSIC BISTABILITY IN RESONANT-TUNNELING STRUCTURES [J].
GOLDMAN, VJ ;
TSUI, DC ;
CUNNINGHAM, JE .
PHYSICAL REVIEW LETTERS, 1987, 58 (12) :1256-1259
[9]  
GOLDMAN VJ, 1987, PHYS REV LETT, V59, P1632
[10]   FREQUENCY LIMIT OF DOUBLE-BARRIER RESONANT-TUNNELING OSCILLATORS [J].
LURYI, S .
APPLIED PHYSICS LETTERS, 1985, 47 (05) :490-492
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