RESONANT COUPLING EFFECTS OBSERVED IN INDEPENDENTLY CONTACTED TRIPLE-QUANTUM-WELL STRUCTURES

被引:5
作者
PATEL, NK [1 ]
MILLARD, IS [1 ]
LINFIELD, EH [1 ]
ROSE, PD [1 ]
RITCHIE, DA [1 ]
JONES, GAC [1 ]
PEPPER, M [1 ]
机构
[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND
关键词
D O I
10.1088/0953-8984/7/44/002
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Independent contacts have been produced to all three two-dimensional electron gases (2DEGs) in a triple-quantum-well structure. This has been achieved by using in situ focused ion beam implantation followed by molecular beam epitaxial regrowth. Lateral transport studies of the individual layers have demonstrated resonant coupling between the high-mobility 2DEGs. Large resistance changes are observed due to coupling between the layers and these can be enhanced by having all three 2DEGs on resonance. A versatile device can thus be fabricated for studying electron interactions.
引用
收藏
页码:L585 / L591
页数:7
相关论文
共 15 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]   RESONANT-TUNNELING BETWEEN PARALLEL, 2-DIMENSIONAL ELECTRON GASES - A NEW APPROACH TO DEVICE FABRICATION USING IN-SITU ION-BEAM LITHOGRAPHY AND MOLECULAR-BEAM EPITAXY GROWTH [J].
BROWN, KM ;
LINFIELD, EH ;
RITCHIE, DA ;
JONES, GAC ;
GRIMSHAW, MP ;
PEPPER, M .
APPLIED PHYSICS LETTERS, 1994, 64 (14) :1827-1829
[3]   TUNNELING BETWEEN 2-DIMENSIONAL ELECTRON GASES IN A STRONG MAGNETIC-FIELD [J].
BROWN, KM ;
TURNER, N ;
NICHOLLS, JT ;
LINFIELD, EH ;
PEPPER, M ;
RITCHIE, DA ;
JONES, GAC .
PHYSICAL REVIEW B, 1994, 50 (20) :15465-15468
[4]   NEGATIVE COMPRESSIBILITY OF INTERACTING 2-DIMENSIONAL ELECTRON AND QUASI-PARTICLE GASES [J].
EISENSTEIN, JP ;
PFEIFFER, LN ;
WEST, KW .
PHYSICAL REVIEW LETTERS, 1992, 68 (05) :674-677
[5]  
EISENSTEIN JP, 1993, PHYS REV LETT, V69, P3804
[6]   MUTUAL FRICTION BETWEEN PARALLEL 2-DIMENSIONAL ELECTRON-SYSTEMS [J].
GRAMILA, TJ ;
EISENSTEIN, JP ;
MACDONALD, AH ;
PFEIFFER, LN ;
WEST, KW .
PHYSICAL REVIEW LETTERS, 1991, 66 (09) :1216-1219
[7]   QUANTUM HALL-EFFECT IN A TRIPLE-LAYER ELECTRON-SYSTEM [J].
JO, J ;
SUEN, W ;
ENGEL, LW ;
SANTOS, MB ;
SHAYEGAN, M .
PHYSICAL REVIEW B, 1992, 46 (15) :9776-9779
[8]   PARALLEL CONDUCTION IN GAAS/ALXGA1-XAS MODULATION DOPED HETEROJUNCTIONS [J].
KANE, MJ ;
APSLEY, N ;
ANDERSON, DA ;
TAYLOR, LL ;
KERR, T .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1985, 18 (29) :5629-5636
[9]   WAVE-FUNCTIONS AND FERMI SURFACES OF STRONGLY COUPLED 2-DIMENSIONAL ELECTRON GASES INVESTIGATED BY INPLANE MAGNETORESISTANCE [J].
KUROBE, A ;
CASTLETON, IM ;
LINFIELD, EH ;
GRIMSHAW, MP ;
BROWN, KM ;
RITCHIE, DA ;
PEPPER, M ;
JONES, GAC .
PHYSICAL REVIEW B, 1994, 50 (07) :4889-4892
[10]   RESONANT RESISTANCE ENHANCEMENT IN DOUBLE-QUANTUM-WELL GAAS-ALXGA1-XAS HETEROSTRUCTURES [J].
KUROBE, A ;
CASTLETON, IM ;
LINFIELD, EH ;
GRIMSHAW, MP ;
BROWN, KM ;
RITCHIE, DA ;
PEPPER, M ;
JONES, GAC .
PHYSICAL REVIEW B, 1994, 50 (11) :8024-8027