12th International CGrifereiite
High Magnetic Fields
in the Physics of
Semiconductors il
Volume 1
Wurzburg, Germany29 July-2 August 1996
Editors
G. Landwehr
W. Ossau
Physikalisches Institut der
University Wurzburg, Germany
^
UNIVERSITATSBiBUOTHEKHANNOVER
TECHNISCHE
.
INFORMATIONSBIBUOTHEK
H WoVl^Scientific —'
jfir Singapore•NewJersey *London • Hong Kong
CONTENTS
VOLUME 1
I. Quantum Hall Effects
A. Integer Quantum Hall Effect
1. Quantum Hall Effect at Finite Temperatures 1
D.G. Polyakov
2. axx and crxy Experiments Regarding High Frequency Scaling 11
in the Integral Quantum Hall Effect
W. Belitsch, R. Meisels, F. Kuchar, G. Weimann,W. Schlapp, V. Umansky, G. Hbin, K. Pierz
3. A Systematic Study of the Temperature Dependence of Quan- 15
turn Hall Plateaux Widths in High Mobility Back-Gated
GaAs-(Ga,Al)As 2DEGs
P.J. Gee, J. Singleton, M.P. Grimshaw, D.A. Ritchie,G.A.C. Jones, J.H. Burroughes
4. High-Field Spin-Polarization Transition in the Landau Bands 19
of Quasi 2D Electron Gases with Strong Lateral Modulation
F. Petit, M. Hayne, B. Etienns
5. Spectroscopy of Two-Dimensional Electronic Systems in Strong 23
Magnetic Fields with Monochromatic Phonons
U. WlESNER, S. ROSHKO, W. DlETSCHE, K. VON KLITZING,
K. Eberl
6. Surface Acoustic-Wave Attenuation by a Two-Dimensional 27
Electron Gas in a Strong Magnetic Field
A. Knabchen, Y. Levinson, O. Entin-Wohlman
7. Integer Quantum Hall Effect in InGaAs/InP Heterostructures 31
at Microwave Frequencies
R. Greiser, A. Brensing, J. Pillath, W. Bauhofer,
V. Harle, F. Soholz, H. Hardtdegen
vii
VIII
8. Electron-Electron Interaction and Percolation Metal-Insulator- 35
Transition in the Quantum Hall Regime
H. Nielsen, P. Alstrom, P. Jorgensen
9. Multifractality of the Quantum Hall Wavefunctions in Higher 39
Landau Levels
T. Terao, T. Nakayama, H. Aoki
10. Unexpected Stability of the Quantum Hall Effect Against 43
Dissipation
F. Gagel, K. Maschke
11. Level Statistics in the Quantum Hall Regime 47
M. Batsch, L. Schweitzer
12. Collapse of Spin Splitting in a Two-Dimensional Electron Gas 51
Near Silicon Vicinal Surface in Quantum Hall Effect Regime
G.M. Gusev, Z.D. Kvon, A.A. Shashkin,
V.T. Dolgopolov
13. Quantum Hall Effect and Valley Degeneracy in (001) Si MOS- 55
FETs Under Uniaxial Stress
J. Lutz, F. Kuchar
14. Coulomb Proximity Phenomena in Two-Dimensional Corbino 59
Disk
V.B. Shikin
B. Fractional Quantum Hall Effect
1. Internal Degrees of Freedom in 0D, ID and 2D Electron Gases 63
in Strong Magnetic Fields
H. AOKI
2. Ground State of a Two-Dimensional Electron Liquid at High 73
Landau Levels
M.M. Fooler, A.A. Koulakov, B.I. Shklovskii
3. Light Scattering by Low-Energy Collective Excitations of 83
Quantum Hall States
A. Pinczuk, B.S. Dennis, A.S. Plaut, L.N. Pfeiffer,K.W. West
IX
4. An Investigation of the Collective Excitations of the Fractional 91
Quantum Hall Effect Using a New Boson Formalism
M. Brownlie, K.A. Benedict
5. A Theory of Phonon Spectroscopy of the Fractional Quantum 95
Hall State
K.A. Benedict
6. Raman Scattering from a Laughlin Liquid at v = 1/3 99
A.J. Turberfield, H.D.M. Davies, J.C. Harris,
R.L. Brockbank, M.J. Snelling, J.F. Ryan
7. Time-Resolved Phonon Absorption of a Two-Dimensional 103
Electron Gas in the Fractional Quantum Hall Regime
U. Zeitler, J.E. Digby, C.J. Mellor, A.J. Kent,
K.A. Benedict, C.T. Foxon, J.J. Harris
8. Experiment-Based Global Phase Diagram for the Quantum 107
Hall Effect
S.V. Kravchenko, W. Mason, J.E. Furneaux,
V.M. Pudalov
9. QHE-Insulator Transition at the Lowest Landau Level in a 111
Two-Dimensional Electron System
V.M. Pudalov
10. The Correlated v = 1 Bi-Layer Fractional Quantum Hall 115
State and Finite Temperature Phase Transition
R.J. Hyndman, T. Ihn, B.L. Gallagher, M. Henini,
T.J. Foster, K.A. Benedict, J.S. Chauhan,
J.R. Middleton, H. Smith
11. Microwave Resonance of 2D Holes in the Wigner Solid 119
RegimeC.-C. Li, L.W. Engel, D. Shahar, D.C. Tsui,
M. Shayegan
12. Rf Absorption Study of the Magnetically-Induced Insulating 123
Phase of a 2DHS
P. Hennigan, C.J. Mellor, M. Henini, A. Beya,
F.I.B. Williams
13. Electron-Hole Chains in Unbalanced Double Layers 127
H. Akera, A.H. MacDonald, D. Yoshioka
14. Dynamics of Compressible Edge and Bosonization 131
J.H. Han, D.J. Thouless
15. Interacting Electrons in High Landau Levels 135
R. Moessner, J.T. Chalker
16. Spin-Reversed Quasiparticles in the Fractional-Quantum- 139
Hall-Effect State
S.I. Doroziikin, M.O. Dorokiiova, R.J. IIaug, K. Ploog
17. Wigner Crystals in Very Strong Magnetic Fields 143
P.A. Maksym
.Breakdown Phenomena
1. Breakdown of the QUE at High Currents 147
S. Kawaji
'2. Theory of the Breakdown of the Quantum Hall Effect 157
V. TSRMEKHMAN, K. TSBMEKHMAN, C. WEXLER,
J.H. Han, D.J. Thoulbss
3. Theoretical Determination of tho Critical Current for the 161
Breakdown of the Quantum Hall Effect
0. CJhauhht, F. Geniet, A. Raymond
4. Explanation of Resistance Jumps Near the Breakdown of the 165
Integer Quantum Hall Effect
J. RiBSS
5. Ouirent Scaling of Conductivity in the Quantum Hall Effect 169
V. Kagalovsky
f>. Nonlocal Breakdown of the Integer Quantum Hall Effect 173
Y. Kawaouciii, K. Komiyama, T. Osada, Y. Siiiraki
7. Breakdown Phenomena of Integer Quantum Hall Effect in 177
Tilted Magnetic Fields
M. Ohno, T. Takamasu, N. Miura, M. Kato, A. Endo,
S. Katkumoto, Y. Iye, T. Tbrashima, II. Aoki, G. Kido
XI
8. Magnetic Field Dependence of the Nonlinear pxx(j)-Beh&- 181viour in the Breakdown of the Quantum-Hall-Effect on the
ir=2-Plateau
H. Scherer, F.-J. Ahlers, L. Bliek
9. Relation Between Critical Electric Field of the Breakdown 185and Magnetic Field in Integer and Fractional Quantum Hall
Effects
T. Takamasu, M. Ohno, N. Miura
10. Temperature Dependence of the "Zero-Resistance" Quantum 189
Hall State Probed by Milli-Kelvin Torque MagnetometryJ. Watts, A. Usher, M. Elliott, W.G. Herrenden-
Harker, T.S. Cheng, C.T. Foxon
D. Edge Effects
1. Dynamic Conductance in Quantum Hall Systems 193
M. Buttiker, T. Christen
2. Quantum Hall Effect: Current Distribution and Existence of 203
Extended States
K. Tsemekhman, V. Tsemekhman, C. Wexler,
D.J. Thouless
3. Inter-Layer Tunneling and Transport Properties in Double- 207
Layer Quantum Hall SystemsD. Yoshioka, A.H. MacDonald
4. Phase Coherence in the Quantum Hall Effect Regime 211
T. Machida, H. Hirai, S. Komiyama, T. Osada,
Y. Shiraki
5. Quantum Hall Resistances with Different Rational Fractions 215
of h/e2 Realized by Controlling the Current Distribution via
Schottky Gates
M. Blocker, G. Nachtwei, F.-J. Ahlers, L. Bliek
6. Bulk Conduction in the Transition Regions Between Hall 219
Plateaus in a Two-Dimensional Electron Gas at High
Magnetic Fields
Q. Du, H. Xu, P. Ramvall, P. Omling
XII
7. Comparison of Nonlocal Resistance Between Si-MOS FET 223
and GaAs/AlGaAs Heterostructure
S. Takaoka, K. Oto, T. Shirae, H. Ishida, K. Murase,K. Morimoto, Y. Hirai
8. Non-Local Transport in PbTe Wide Parabolic Quantum Wells 227
J. Oswald, G. Heigl, G. Span, A. Homer, P. Ganitzer,D.K. Maude, J.C. Portal
II. New Quasi-Particles
A. Composite Fermions
1. Excitations of Composite Fermions 231
J.K. Jain, R.K. Kamilla
2. Composite Fermions in Experiment 243
H.L. Stormer
3. On the Evolution Towards a Fractional Quantum Hall State 255
R.K. Hills, K.A. Benedict
4. Composite Fermion (CF) Energy Gap Variation in Tilted 259
Magnetic Fields
P.J. Gee, J. Singleton, S. Uji, H. Aoki, C.T. Foxon,J.J. Harris
B. Skyrmions
1. Evidence for Skyrmion Excitations in 2D Electrons by Inter- 263
band Optical Transmission SpectroscopyB.B. Goldberg, M.J. Manfra, E.H. Aifer,D.A. Broido, L.N. Pfeiffer, K.W. West
2. Skyrmions in Quantum Hall Ferromagnets 275
A.H. MacDonald
3. Exact Diagonalization Study of Interacting Electrons with 277
Spin Degree of Freedom in the Disk GeometryM. Kasner
XIII
4. Low Temperature Heat Capacity of GaAs Quantum Wells 281
Near u = 1
V. Bayot, E. Grivei, S. Melinte, M.B. Santos,M. Shayegan
5. Theory of Photoluminescence at u = 1 285
N.R. Cooper, D.B. Chklovskii
. Magnetotransport1. Magnetotransport in Combined Magnetic and Electric Super- 289
lattices
R.R. Gerhardts
2. Quantum Transport in Ballistic Quantum Dots 299
D.K. Ferry, R. Akis, D.P. Pivin, K.M. Connolly,J.P. Bird, K. Isiiibashi, Y. Aoyagi, T. Sugano, Y. Ochiai
3. Flux Quantization Effects in Semiconductor-Superconductor 309
Junctions
H. Kroemer, M. Thomas
4. Coulomb Effects on the Magnetoconductance of a Two- 319
Dimensional Electron Gas in a Lateral Superlattice: A
Screened Hartree-Fock Calculation
A. Manolescu, R.R. Gerhardts
5. Consistent Solution of Boltzmann's Equation for Two- 323
Dimensional Electron Systems with Periodic Unidirectional
Modulations of Arbitrary StrengthsR. Menne, R.R. Gerhardts
6. Theory of the Magneto-Transport in a Nonplanar Two- 327
Dimensional Electron Gas
S.M. Badalian, I.S. Ibrahim, F.M. Peeters
7. Electronic Structure of Two-Dimensional Lateral Superstruc- 331
tures in Strong Magnetic Fields
H. Aoki, M. Ando, H. Matsumura
8. Is the Hofstadter Energy Spectrum Observable In Far-Infra- 335
red Absorption?
V. Gudmundsson, R.R. Gerhardts
XIV
9. Fractional Quantum Hall Effect or Hofstadter Butterfly: 339
Interacting Electrons in a Lateral Superlattice Potential
D. Pfannkuche, A.H. MacDonald
10. Transport Properties of Two-Dimensional Electron Gases in 343
Short Period Lateral SuperlatticesM. Hayne, F. Petit, B. Etienne
11. Split-Gate Quantum Wires Having a Ferromagnetic Dot 347
Made by STM Fabrication
T. Kikutani, N. Aoki, A. Oki, C.U. Hong, H. Hori,
S. Yamada
12. Magnetic Field Induced 3D-2D Transition in InGaAs/InP- 351
SuperlatticesO. Jaschinski, J. Schoenes, G. Nachtwei, P. Bonsch,
A. Schlachetzki
13. Influence of Parallel High Magnetic Field on the Ballistic 355
Transport in Two-Dimensional Electron System
K. Oto, S. Takaoka, K. Murase
14. Anti-Crossing of Diamagnetic Energy Levels in Si 5-Doped 359
GaAs
A.F.W. van de Stadt, P.M. Koenraad, J.H. Wolter,
R. Bogaerts, A. de Keyser, F. Herlach
15. Effective Masses and g-Factors of Xz and X^y Electrons in 363
AlAs Quantum Wells
A.F.W. van de Stadt, P.M. Koenraad, J.H. Wolter,
J.A.A.J. Perenboom
16. Ring Exchange Interaction Among Strongly Localized Elec- 367
Irons in Si MOSFETs
T. Okamoto, S. Kawaji
17. Phonon Emission From 2DEG: Evidence of Transition to the 371
Hydrodynamic Regime
E. Chow, H.P. Wei, S.M. Girvin, M. Shayegan
18. Magneto-Photon-Phonon Resonances in Terahertz-Driven 375
2DEGs in High Magnetic Fields
W. Xu, C. Zhang
XV
19. The Phonon-Induced Drag of 2D Holes in Magnetic Fields 379D. Lehmann, A.J. Kent, R.E. Strickland, K.R. Strick¬
land, M. Henini, C. Jasiukibwicz, T. Paszkiewicz
20. Modification of the 2D Electronic Properties in Si-6-Doped 383
InSb Due to Surface Effects
A. de Keyser, R. Bogaerts, L. van Bockstal,F. Herlach, V.C. Karavolas, F.M. Peeters,W. VAN DE GRAAF, G. BORGHS
21. Application of Magneto-Capacitance to the Study of Narrow 387
Gap Semiconductors
J. Chu, K. Liu, D.Y. Tang
22. Large Negative Magnetoresistance in the Insulating Regime 391
of a Two-Dimensional Electron Gas with an Artificial Potential
G.M. Gusev, X. Kleber, U. Gennser, D.K. Maude,
J.C. Portal, D.I. Lubyshev, P. Basmaji,
M.P.A. da Silva, J.C. Rossi, Y.U.V. Nastaushev
23. Magnetoresistance of FeSi in the Region of Variable-Range 395
Hopping
J. Broto, E.K. Arushanov, H. Rakoto, M. Respaud,
J. Leotin, E. Bucher, Ch. Kloc, K.G. Lisunov
24. Influence of the Magnetic Properties of Mn on Shubnikov-de 399
Haas (SdH)-Oscillations and Quantum Hall Effect (QHE) in
Cd(MnMg)Te/Cd(Mn)Te Quantum Wells
J. Gerschutz, S. Scholl, G. Landwehr
25. High Magnetic Field Study of Metal-Insulator Transition in 403
Perovskite Type Manganese Oxide Ri_xCa!EMn03 (R=Pr, Nd)
M. Tokunaga, N. Miura, Y. Tomioka, Y. Tokura
26. Nonparabolicity and Anisotropy of Cyclotron Masses in 407
Highly Doped n-Germanium
D, Schneider, U. Strauss
27. Subband Locking as the Precursor to Hybrid Double-Single- 411
Layer Behaviour in a Double Quantum Well Structure
A.G. Davies, C.H.W. Barnes, K.R. Zolleis,
J.T. Nicholls, M.Y. Simmons, D.A. Ritchie
28. GaAs-Single Quantum Wells with Extremely High Conducti- 415
vities
K.-J. Friedland, R. Hey, H. Kostial, K. Ploog
29. Effect of the Uniaxial Stress on the Quantum Transport of 419
Two-Dimensional Holes in the Si-MOSFETs
S.I. Dorozhkin, V.E. Bisti, G. Landwehr
Tunneling
1. Magnetotunnelling Spectroscopy of Quantum Dots Formed 423
by Self-Organized Expitaxial Growth
L. Eaves, I.E. Itskevich, T. Ihn, A. Thornton,P.H. Beton, P.C. Main, T.J. Foster, M. Henini
2. Precursors and Transition to Chaos in Resonant Tunneling 433
G. Boebinger
3. Universal Conductance Fluctuations and Telegraph Noise 435
Spectroscopy to Investigate the Magnetisation of Self-
Organised ErAs Quantum Dots
F. Coppinger, J. Gbnoe, L.B. Rigal, D.K. Maude,
U. Gennser, J.C. Portal, K.E. Singer, P. Rutter,
T. Taskin, A.C. Wright, A.R. Peaker
4. Tunnelling Between Parallel 2DEGs with an In-Plane Magne- 445
tic Field in the "Quantum Transport Regime"M.J. Gompertz, T. Ihn, H.A. Carmona, A. Nogaret,
P.C. Main, L. Eaves, M. Henini, S.P. Beaumont
5. Current-Voltage Characteristics of Quantum Chaotic Tunnel 449
Structures in High Magnetic Fields
P.B. Wilkinson, T.M. Fromhold, F.W. Sheard
6. Magnetic Field Studies of Phonon Assisted Tunnelling in a 453
5-Doped Double Barrier Resonant Tunnelling Device
E.S. Moskalenko, D.N. Hill, F.F. Ouali, L.J. Challis,
F.W. Sheard, M. Henini
XVII
7. Inter-Landau Level Transitions at the Threshold of Resonant 457
Tunneling in a Magnetic Field
S.A. Brown, L.D. Macks, P.E. Simmonds, T.A. Fisher,M. Emeny
8. Magnetoresistance and Zero-Bias Anomaly in Tunnel Schott- 461
ky-Barrier Junctions at Quantizing Magnetic Fields
A.Ya. Shul'man, I.N. Kotel'nikov
9. Quantum-Interference Oscillations of the Resonant-Tunnel- 465
ling Current in a Transverse Magnetic Field
T. Wosinski, T. Figiblski, A. Makosa, W. Dobrowolski,
S.A. Vitusevich, A.E. Belyaev
10. Dynamics of Electric Field Domain in GalnAs/AlInAs p-n 469
Multiple Quantum Wells Under High Magnetic Field
S. Yamada, Y. Kawai, K. Yamamoto, H. Asai,
Y. Kawamura, T. Sasaki, T. Fukase
11. Single Electron Tunnelling through Self-Assembled InAs 473
Quantum Dots as Spectroscopic Probe of a 2DEG
A. Thornton, T. Ihn, I.E. Itskevich, P.C. Main,
L. Eaves, M. Henini
12. Magneto-Tunneling Study of Zero-Dimensional Electronic 477
States in Self-Organized InAs Quantum Dot
M. Narihiro, G. Yusa, Y. Nakamura, T. Noda,
H. Sakaki
13. Magnetotunneling Study of a Trapezoidal Si Quantum Well 481
J. Lindolf, U. Kunze, W. Kiunke, I. Eisele
14. Resonant Tunneling in ZnSe/BeTe-Structures in High Mag- 485
netic Fields
M. Keim, U. Lunz, G. Reuscher, A. Waag, G. Landwehr
15. Resonance Broadening of Two-Dimensional States in Semi- 489
conductors with Inverted Band Structures
A.V. Germanenko, G.M. Minkov, V.A. Larionova,
O.E. Rut
xviii
16. Spin-Dependent Tunneling in Metal-Insulator-Narrow Gap 493
Semiconductor Structures in a Magnetic Field
G.M. Minkov, O.E. Rut, A.V. Germanenko,
V.A. Larionova
V. Small Quantum Systems
1. Influence of s-d Exchange Interaction on Universal Conduc- 497
tance Fluctuations
J. Jaroszynski, T. Dietl
2. Magnetisation and Persistent Currents in Two-Dimensional 507
Rings
W.-C. Tan, J.C. Inkson
3. Boundary Element Method for Calculating Electronic States 511
of Quantum Dot Structures in Magnetic Fields
P.A. Knipp, T.L. Reinecke
4. Study of Phase Breaking of Mesoscopic Transport in Quan- 515
turn Wire and Dot
Y. Ochiai, Y. Ohkubo, A.W. Widjaja, K. Yamamoto,J.P. Bird, K. Ishibashi, Y. Aoyagi, T. Sugano,D.K. Ferry
5. Magnetotransport Properties of a New-Type Star-Like Sinai 519
Billiard
M.V. Budantsev, Z.D. Kvon, A.G. Pogosov,
A.I. Toropov, N.T. Moshegov, A.E. Plotnikov
6. The Asymmetry of Mesoscopic Photovoltaic Effect in Magne- 523
tic Field in Ballistic and Adiabatic Transport RegimesA.A. Bykov, L.V. Litvin, E.B. Olshanetskii,
N.T. Moshegov, A.I. Toropov