TIME-OF-FLIGHT MEASUREMENTS OF NEGATIVE DIFFERENTIAL VELOCITY AND ELECTRON HEATING IN GAAS/AIAS SUPERLATTICES

被引：15

作者：

MINOT, C ^{[1
]}

LEPERSON, H ^{[1
]}

PALMIER, JF ^{[1
]}

MOLLOT, F ^{[1
]}

机构：

[1] CNRS,MICROELECTR & MICROSTRUCT LAB,F-92225 BAGNEUX,FRANCE

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.47.10024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report time-resolved photocurrent measurements of electron time of flight in GaAs/AlAs superlattices. The electron velocity is determined as a function of electric field at 77 and 300 K in a series of superlattices having miniband widths between 22 and 114 meV. Negative differential velocity is evidenced at intermediate electric fields on a picosecond time scale. A Boltzmann-Bloch transport mechanism of the Esaki-Tsu-type is shown to account for the velocity laws when carrier heating is assumed to take place.

引用

页码：10024 / 10027

页数：4

共 22 条

[1]

BARKER JR, 1982, HDB SEMICONDUCTORS, V1, P617

[2] SCATTERING-CONTROLLED TRANSMISSION RESONANCES AND NEGATIVE DIFFERENTIAL CONDUCTANCE BY FIELD-INDUCED LOCALIZATION IN SUPERLATTICES [J].

BELTRAM, F ;

CAPASSO, F ;

SIVCO, DL ;

HUTCHINSON, AL ;

CHU, SNG ;

CHO, AY .

PHYSICAL REVIEW LETTERS, 1990, 64 (26) :3167-3170

[3] HOPPING CONDUCTION IN MULTIQUANTUM WELL STRUCTURES [J].

CALECKI, D ;

PALMIER, JF ;

CHOMETTE, A .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (28) :5017-5030

[4] PERIODIC NEGATIVE CONDUCTANCE BY SEQUENTIAL RESONANT TUNNELING THROUGH AN EXPANDING HIGH-FIELD SUPERLATTICE DOMAIN [J].

CHOI, KK ;

LEVINE, BF ;

MALIK, RJ ;

WALKER, J ;

BETHEA, CG .

PHYSICAL REVIEW B, 1987, 35 (08) :4172-4175

[5] OPTICAL EVIDENCE OF THE DIRECT-TO-INDIRECT-GAP TRANSITION IN GAAS-ALAS SHORT-PERIOD SUPERLATTICES [J].

DANAN, G ;

ETIENNE, B ;

MOLLOT, F ;

PLANEL, R ;

JEANLOUIS, AM ;

ALEXANDRE, F ;

JUSSERAND, B ;

LEROUX, G ;

MARZIN, JY ;

SAVARY, H ;

SERMAGE, B .

PHYSICAL REVIEW B, 1987, 35 (12) :6207-6212

[6] BLOCH TRANSPORT OF ELECTRONS AND HOLES IN SUPERLATTICE MINIBANDS - DIRECT MEASUREMENT BY SUBPICOSECOND LUMINESCENCE SPECTROSCOPY [J].

DEVEAUD, B ;

SHAH, J ;

DAMEN, TC ;

LAMBERT, B ;

REGRENY, A .

PHYSICAL REVIEW LETTERS, 1987, 58 (24) :2582-2585

[7] NEW TRANSPORT PHENOMENON IN A SEMICONDUCTOR SUPERLATTICE [J].

ESAKI, L ;

CHANG, LL .

PHYSICAL REVIEW LETTERS, 1974, 33 (08) :495-498

[8] SUPERLATTICE AND NEGATIVE DIFFERENTIAL CONDUCTIVITY IN SEMICONDUCTORS [J].

ESAKI, L ;

TSU, R .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1970, 14 (01) :61-&

[9] OPTICAL INVESTIGATION OF BLOCH OSCILLATIONS IN A SEMICONDUCTOR SUPERLATTICE [J].

FELDMANN, J ;

LEO, K ;

SHAH, J ;

MILLER, DAB ;

CUNNINGHAM, JE ;

MEIER, T ;

VONPLESSEN, G ;

SCHULZE, A ;

THOMAS, P ;

SCHMITTRINK, S .

PHYSICAL REVIEW B, 1992, 46 (11) :7252-7255

[10] ELECTRICAL TRANSPORT IN NARROW-MINIBAND SEMICONDUCTOR SUPERLATTICES [J].

GRAHN, HT ;

VONKLITZING, K ;

PLOOG, K ;

DOHLER, GH .

PHYSICAL REVIEW B, 1991, 43 (14) :12094-12097

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