Light-scattering determination of electron tunneling gaps in double quantum wells

被引：2

作者：

Plaut, AS ^{[1
]}

Pinczuk, A ^{[1
]}

Dennis, BS ^{[1
]}

Eisenstein, JP ^{[1
]}

Pfeiffer, LN ^{[1
]}

West, KW ^{[1
]}

机构：

[1] UNIV EXETER,EXETER EX4 4QL,DEVON,ENGLAND

来源：

SOLID-STATE ELECTRONICS | 1996年 / 40卷 / 1-8期

关键词：

D O I：

10.1016/0038-1101(95)00267-7

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Resonant inelastic light-scattering techniques have been used to measure directly the single-particle tunneling gap (Delta(SAS)) in AlxGa1-xAs/GaAs double quantum wells. We have observed a systematic decrease in Delta(SAS) with increasing height of the barrier in agreement with the Delta(SAS) calculated self-consistently within a Hartree approximation.

引用

收藏

页码：291 / 293

页数：3

相关论文

共 24 条

[1] MAGNETIC-FIELD-DRIVEN DESTRUCTION OF QUANTUM HALL STATES IN A DOUBLE QUANTUM-WELL [J].

BOEBINGER, GS ;

JIANG, HW ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1990, 64 (15) :1793-1796

[2] MAGNETOOPTICAL EVIDENCE FOR FRACTIONAL QUANTUM HALL STATES DOWN TO FILLING FACTOR 1/9 [J].

BUHMANN, H ;

JOSS, W ;

VONKLITZING, K ;

KUKUSHKIN, IV ;

MARTINEZ, G ;

PLAUT, AS ;

PLOOG, K ;

TIMOFEEV, VB .

PHYSICAL REVIEW LETTERS, 1990, 65 (08) :1056-1059

[3] NOVEL MAGNETOOPTICAL BEHAVIOR IN THE WIGNER-SOLID REGIME [J].

BUHMANN, H ;

JOSS, W ;

VONKLITZING, K ;

KUKUSHKIN, IV ;

PLAUT, AS ;

MARTINEZ, G ;

PLOOG, K ;

TIMOFEEV, VB .

PHYSICAL REVIEW LETTERS, 1991, 66 (07) :926-929

[4] VERTEX-CORRECTION-DRIVEN INTERSUBBAND SPIN-DENSITY EXCITONIC INSTABILITY IN DOUBLE-QUANTUM-WELL STRUCTURES [J].

DASSARMA, S ;

TAMBORENEA, PI .

PHYSICAL REVIEW LETTERS, 1994, 73 (14) :1971-1974

[5] ABSENCE OF SPIN-DENSITY EXCITATIONS IN QUASI-2-DIMENSIONAL ELECTRON-SYSTEMS [J].

DECCA, R ;

PINCZUK, A ;

DASSARMA, S ;

DENNIS, BS ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1994, 72 (10) :1506-1509

[6] COULOMB BARRIER TO TUNNELING BETWEEN PARALLEL 2-DIMENSIONAL ELECTRON-SYSTEMS [J].

EISENSTEIN, JP ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1992, 69 (26) :3804-3807

[7] NEW FRACTIONAL QUANTUM HALL STATE IN DOUBLE-LAYER 2-DIMENSIONAL ELECTRON-SYSTEMS [J].

EISENSTEIN, JP ;

BOEBINGER, GS ;

PFEIFFER, LN ;

WEST, KW ;

HE, S .

PHYSICAL REVIEW LETTERS, 1992, 68 (09) :1383-1386

[8] SPIN-DENSITY WAVES IN A QUASI-2-DIMENSIONAL ELECTRON-GAS [J].

GAMMON, D ;

SHANABROOK, BV ;

RYAN, JC ;

KATZER, DS .

PHYSICAL REVIEW B, 1990, 41 (17) :12311-12314

[9] EXCHANGE AND CORRELATION IN THE NONHOMOGENEOUS ELECTRON-GAS IN SEMICONDUCTOR HETEROJUNCTIONS [J].

GAMMON, D ;

SHANABROOK, BV ;

RYAN, JC ;

KATZER, DS ;

YANG, MJ .

PHYSICAL REVIEW LETTERS, 1992, 68 (12) :1884-1887

[10] OPTICAL INVESTIGATIONS OF THE INTEGER AND FRACTIONAL QUANTUM HALL-EFFECTS - ENERGY PLATEAUS, INTENSITY MINIMA, AND LINE SPLITTING IN BAND-GAP EMISSION [J].

GOLDBERG, BB ;

HEIMAN, D ;

PINCZUK, A ;

PFEIFFER, L ;

WEST, K .

PHYSICAL REVIEW LETTERS, 1990, 65 (05) :641-644