By Scientia Professor Michelle Yvonne Simmons

Journal articles

Liang CT; Simmons MY; Smith CG; Ritchie DA; Pepper M, 1999, 'Fabrication and transport properties of clean long one-dimensional quantum wires formed in modulation-doped GaAs/AlGaAs heterostructures', Applied Physics Letters, 75, pp. 2975 - 2977, http://dx.doi.org/10.1063/1.125206

Harrell R; Pyshkin K; Simmons MY; Ritchie DA; Ford CJ; Jones G; Pepper M, 1999, 'Fabrication of high-quality one- and two-dimensional electron gases in undoped GaAs/AlGaAs heterostructures', Applied Physics Letters, 74, pp. 2328 - 2330, http://dx.doi.org/10.1063/1.123840

Barnes CW; Davies A; Zolleis K; Simmons MY; Ritchie DA, 1999, 'Intrinsic coupling mechanisms between two-dimensional electron systems in double quantum well structures', Physical Review - Section B - Condensed Matter, 59, pp. 7669 - 7678, http://dx.doi.org/10.1103/PhysRevB.59.7669

Hamilton AR; Simmons MY; Pepper M; Linfield EH; Rose PD; Ritchie DA, 1999, 'Reentrant insulator-metal-insulator transition at B=0 in a two-dimensional hole gas', Physical Review Letters, 82, pp. 1542 - 1545, http://dx.doi.org/10.1103/PhysRevLett.82.1542

Cunningham JD; Talyanskii V; Shilton J; Pepper M; Simmons MY; Ritchie DA, 1999, 'Single-electron acoustic charge transport by two counterpropagating surface acoustic wave beams', Physical Review - Section B - Condensed Matter, 60, pp. 4850 - 4855, http://dx.doi.org/10.1103/PhysRevB.60.4850

Liang CT; Simmons MY; Smith CG; Kim G; Ritchie DA; Pepper M, 1999, 'Spin-dependent transport in a clean one-dimensional channel', Physical Review - Section B - Condensed Matter, 60, pp. 10687 - 10690, http://dx.doi.org/10.1103/PhysRevB.60.10687

Harrell R; Thompson J; Ritchie DA; Simmons MY; Jones G; Pepper M, 1999, 'Very high quality 2DEGS formed without dopant in GaAs AlGaAs heterostructures', Journal of Crystal Growth, 201-202, pp. 159 - 162, http://dx.doi.org/10.1016/S0022-0248(98)01316-5

Osborne JL; Shields AJ; Simmons MY; Cooper NR; Ritchie DA; Pepper M, 1998, 'Ecitons, spin-waves and skyrmions in the optical spectra of a two dimensional electron gas', Solid-State Electronics, 42, pp. 1169 - 1174, http://dx.doi.org/10.1016/S0038-1101(97)00323-7

Barnes CW; Davies A; Zolleis K; Simmons MY; Ritchie DA, 1998, 'A study of the relative strengths of spin-pseudospin phases in a strongly coupled double quantum well system', Physica B - Condensed Matter, 256-258, pp. 130 - 135, http://dx.doi.org/10.1016/S0921-4526(98)00542-0

Shields AJ; Osborne J; Whittaker D; Simmons MY; Bolton F; Ritchie DA; Pepper M, 1998, 'Charged excitons under applied electric and magnetic fields', Physica B - Condensed Matter, 249-251, pp. 584 - 588, http://dx.doi.org/10.1016/S0921-4526(98)00192-6

Castleton I; Davies A; Hamilton AR; Frost J; Simmons MY; Ritchie DA; Pepper M, 1998, 'Closely separated one-dimensional wires: coupled ballistic conduction, wave function hybridization and compressibility investigations', Physica B - Condensed Matter, 249-251, pp. 157 - 161, http://dx.doi.org/10.1016/S0921-4526(98)00089-1

Watts J; Usher A; Matthews A; Zhu M; Elliott MJ; Herrenden-Harker WG; Morris P; Simmons MY; Ritchie DA, 1998, 'Current breakdown of the fractional quantum Hall effect through contactless detection of induced currents', Physical Review Letters, 81, pp. 4220 - 4223, http://dx.doi.org/10.1103/PhysRevLett.81.4220

Shields AJ; Osborne J; Whittaker D; Simmons MY; Ritchie DA; Pepper M, 1998, 'Electron coupling effects on negatively charged excitons in GaAs double quantum wells', Solid - State Electronics, 42, pp. 1569 - 1574, http://dx.doi.org/10.1016/S0038-1101(98)00073-2

North A; Linfield EH; Simmons MY; Ritchie DA; Leadbeater M; Burroughes J; Foden C; Pepper M, 1998, 'Electron reflection and interference in the GaAs/AlAs-Al Schottky collector resonant-tunneling diode', Physical Review - Section B - Condensed Matter, 57, pp. 1847 - 1854, http://dx.doi.org/10.1103/PhysRevB.57.1847

Kainth D; Richards D; Hughes H; Simmons MY; Ritchie DA, 1998, 'Erratum: Temperature-dependent Landau damping of the acoustic plasmon in a bilayer system [Phys. Rev. B 57, 2065 (1998)]', Physical Review - Section B - Condensed Matter, 57, pp. 14999 - 14999, http://dx.doi.org/10.1103/PhysRevB.57.14999.2

Osborne J; Shields AJ; Simmons MY; Cooper N; Ritchie DA; Pepper M, 1998, 'Excitonic recombination processes in spin-polarized two-dimensional electron gases', Physical Review - Section B - Condensed Matter, 58, pp. R4227 - R4230, http://dx.doi.org/10.1103/PhysRevB.58.R4227

Osborne J; Shields AJ; Simmons MY; Cooper N; Ritchie DA; Pepper M, 1998, 'Excitons, spin-waves and Skyrmions in the optical spectra of a two dimensional electron gas', Solid - State Electronics, 42, pp. 1169 - 1174, http://dx.doi.org/10.1016/S0038-1101(97)00323-7

Liang CT; Frost J; Simmons MY; Ritchie DA; Pepper M, 1998, 'Experimental evidence for a metal-insulator transition and geometric effect in a half-filled Landau level', Physica E - Low - Dimensional Systems and Nanostructures, 2, pp. 78 - 81, http://dx.doi.org/10.1016/S1386-9477(98)00018-6

Liang CT; Simmons MY; Smith CG; Kim G; Ritchie DA; Pepper M, 1998, 'Experimental evidence for Coulomb charging effects in an open quantum dot at zero magnetic field', Physical Review Letters, 81, pp. 3507 - 3510, http://dx.doi.org/10.1103/PhysRevLett.81.3507

Thomas KJ; Nicholls JT; Appleyard N; Simmons MY; Pepper M; Mace DR; Tribe WR; Ritchie DA, 1998, 'Interaction effects in a one-dimensional constriction', Physical Review - Section B - Condensed Matter, 58, pp. 4846 - 4852, http://dx.doi.org/10.1103/PhysRevB.58.4846

Wiegers S; Specht M; Levy L; Simmons MY; Ritchie DA; Cavanna A; Etienne B; Martinez G; Wyder P, 1998, 'Magnetization and incompressibility of a high mobility 2D electron gas in the IQHE', Physica B - Condensed Matter, 249-251, pp. 115 - 118, http://dx.doi.org/10.1016/S0921-4526(98)00079-9

Wiegers S; Specht M; Bibow E; Levy L; Melinte S; Grivel E; Bayot V; Simmons MY; Ritchie DA; Shayegan M; Cavanna A; Etienne B; Martinez G; Wyder P, 1998, 'Magnetization of an incompressible two-dimensional electron gas', Physica B - Condensed Matter, 256-258, pp. 16 - 22, http://dx.doi.org/10.1016/S0921-4526(98)00581-X

Osborne J; Shields AJ; Simmons MY; Cooper N; Ritchie DA; Pepper M, 1998, 'Magneto-optical study of excitonic states in 2DEGs near filling factor v=1', Physica B - Condensed Matter, 249-251, pp. 538 - 543, http://dx.doi.org/10.1016/S0921-4526(98)00181-1

Hamilton AR; Simmons MY; Griffiths T; Savchenko AK; Pepper M; Ritchie DA, 1998, 'Many-body interactions, the quantum Hall effect, and insulating phases in bilayer two-dimensional hole-gas systems', Physica B - Condensed Matter, 249-251, pp. 819 - 823, http://dx.doi.org/10.1016/S0921-4526(98)00322-6

Simmons MY; Hamilton AR; Pepper M; Linfield EH; Rose PD; Ritchie DA; Savchenko AK; Griffiths T, 1998, 'Metal-insulator transition at B=0 in a dilute two dimensional GaAs-AlGaAs hole gas', Physical Review Letters, 80, pp. 1292 - 1295, http://dx.doi.org/10.1103/PhysRevLett.80.1292

Simmons MY; Hamilton AR; Griffiths T; Savchenko AK; Pepper M; Ritchie DA, 1998, 'Metal-insulator transition at B=0 in an ultra-low density two-dimensional hole gas', Physica B - Condensed Matter, 249-251, pp. 705 - 709, http://dx.doi.org/10.1016/S0921-4526(98)00296-8

Daneshvar A; Ford CJ; Hamilton AR; Simmons MY; Pepper M; Ritchie DA, 1998, 'Multiple subband crossing in a one-dimensional hole gas with enhanced g-factors', Physica B - Condensed Matter, 249-251, pp. 166 - 170, http://dx.doi.org/10.1016/S0921-4526(98)00091-X

Franklin J; Simmons MY; Ford CJ; Ritchie DA; Pepper M, 1998, 'Non-equilibrium transport along an edge of variable slope in the fractional quantum Hall regime', Physica B - Condensed Matter, 249-251, pp. 405 - 409, http://dx.doi.org/10.1016/S0921-4526(98)00144-6

Thomas KJ; Nicholls JT; Simmons MY; Pepper M; Mace DR; Ritchie DA, 1998, 'Nonlinear transport in a single-mode one-dimensional electron gas', Philosophical Magazine B, 77, pp. 1213 - 1218, http://dx.doi.org/10.1080/014186398258609

Zolleis K; Barnes CW; Davies A; Simmons MY; Ritchie DA; Pepper M, 1998, 'Onset of subband locking in double-quantum-well structures as the signature of wave function delocalization', Physica B - Condensed Matter, 249-251, pp. 850 - 854, http://dx.doi.org/10.1016/S0921-4526(98)00329-9

Davies A; Barnes CW; Zolleis K; Simmons MY; Ritchie DA, 1998, 'Probing the transition from insulating to metallic behaviour using bi-layer electron systems', Physica B - Condensed Matter, 256-258, pp. 417 - 423, http://dx.doi.org/10.1016/S0921-4526(98)00577-8

Kainth D; Richards D; Hughes H; Simmons MY; Ritchie DA, 1998, 'Raman scattering study of the plasmon modes in bilayer systems', Physica E - Low - Dimensional Systems and Nanostructures, 2, pp. 834 - 838, http://dx.doi.org/10.1016/S1386-9477(98)00170-2

Davies H; Harris J; Brockbank R; Ryan J; Turberfield A; Simmons MY; Ritchie DA, 1998, 'Skyrmion-hole excitations at v=1 studied by photoluminescence spectroscopy', Physica B - Condensed Matter, http://dx.doi.org/10.1016/S0921-4526(98)00182-3

Shields AJ; Osborne J; Simmons MY; Whittaker D; Bolton F; Ritchie DA; Pepper M, 1998, 'Stark effect of negatively and positively charged excitons in semiconductor quantum wells', Physica E - Low - Dimensional Systems and Nanostructures, 2, pp. 87 - 92, http://dx.doi.org/10.1016/S1386-9477(98)00020-4

Kainth D; Simmons MY; Hughes H; Richards D; Ritchie DA, 1998, 'Temperature-dependent Landau damping of the acoustic plasmon in a bilayer system', Physical Review - Section B - Condensed Matter, 57, pp. R2065 - R2068, http://dx.doi.org/10.1103/PhysRevB.57.R2065

Appleyard N; Nicholls JT; Simmons MY; Tribe WR; Pepper M, 1998, 'Thermometer for the 2D electron gas using 1D thermopower', Physical Review Letters, 81, pp. 3491 - 3494, http://dx.doi.org/10.1103/PhysRevLett.81.3491

Patel NJ; Millard S; Foden C; Linfield EH; Simmons MY; Ritchie DA; Pepper M, 1997, 'Compressibility studies of two-dimensional electron gases', Superlattices and Microstructures, 21, pp. 125 - 129, http://dx.doi.org/10.1006/spmi.1996.0182

Millard S; Patel NJ; Foden C; Linfield EH; Simmons MY; Ritchie DA; Pepper M, 1997, 'Effect of finite quantum-well width on the compressibility of a two-dimensional electron gas', Physical Review - Section B - Condensed Matter, 55, pp. 6715 - 6718, http://dx.doi.org/10.1103/PhysRevB.55.6715

Shields AJ; Bolton F; Simmons MY; Pepper M; Ritchie DA, 1997, 'Electric-field-induced ionization of negatively charged excitons in quantum wells', Physical Review - Section B - Condensed Matter, 55, pp. R1970 - R1972, http://dx.doi.org/10.1103/PhysRevB.55.R1970

Daneshvar A; Ford CJ; Hamilton AR; Simmons MY; Pepper M; Ritchie DA, 1997, 'Enhanced g factors of a one-dimensional hole gas with quantized conductance', Physical Review - Section B - Condensed Matter, 55, pp. R13409 - R13412, http://dx.doi.org/10.1103/PhysRevB.55.R13409

Liang CT; Frost J; Simmons MY; Ritchie DA; Pepper M, 1997, 'Experimental evidence of a metal-insulator transition in a half-filled Landau level', Solid State Communications, 102, pp. 327 - 330, http://dx.doi.org/10.1016/S0038-1098(96)00764-8

Simmons MY; Hamilton AR; Stevens S; Ritchie DA; Pepper M; Kurobe A, 1997, 'Fabrication of high mobility in situ back-gated (311)A hole gas heterojunctions', Applied Physics Letters, 70, pp. 2750 - 2752, http://dx.doi.org/10.1063/1.119012

Wiegers S; Specht M; Levy L; Simmons MY; Ritchie DA; Cavanna A; Etienne B; Martinez G; Wyder P, 1997, 'Magnetization and energy gaps of a high-mobility 2D electron gas in the quantum limit', Physical Review Letters, 79, pp. 3238 - 3241, http://dx.doi.org/10.1103/PhysRevLett.79.3238

Daneshvar A; Ford CJ; Simmons MY; Khaetskii A; Hamilton AR; Pepper M; Ritchie DA, 1997, 'Magnetization instability in a two-dimensional system', Physical Review Letters, 79, pp. 4449 - 4452, http://dx.doi.org/10.1103/PhysRevLett.79.4449

Shields AJ; Osborne J; Whittaker D; Simmons MY; Pepper M; Ritchie DA, 1997, 'Negatively charged excitons in coupled double quantum wells', Physical Review - Section B - Condensed Matter, 55, pp. 1318 - 1321, http://dx.doi.org/10.1103/PhysRevB.55.1318

Millard S; Patel NJ; Foden C; Simmons MY; Ritchie DA; Jones G; Pepper M, 1997, 'Observation of magnetic breakdown in coupled double quantum wells', Physical Review - Section B - Condensed Matter, 55, pp. R13401 - R13404, http://dx.doi.org/10.1103/PhysRevB.55.R13401

Garro N; Phillips R; Cantarero A; Simmons MY; Ritchie DA, 1997, 'Resonant Rayleigh scattering by confined two-dimensional excitonic states', Physica Status Solidi B - Basic Solid State Physics, 204, pp. 45 - 48, http://dx.doi.org/10.1002/1521-3951(199711)204:13.0.CO;2-7

Garro N; Pugh L; Phillips R; Drouot V; Simmons MY; Kardynal B; Ritchie DA, 1997, 'Resonant Rayleigh scattering by excitonic states laterally confined in the interface roughness of GaAs/AlxGa1-xAs single quantum wells', Physical Review - Section B - Condensed Matter, 55, pp. 13752 - 13760, http://dx.doi.org/10.1103/PhysRevB.55.13752

Simmons MY; Hamilton AR; Kurobe A; Stevens S; Ritchie DA; Pepper M, 1997, 'The physics and fabrication of in situ back-gated (311)A hole gas heterojunctions', Microelectronics Journal, 28, pp. 795 - 801, http://dx.doi.org/10.1016/S0026-2692(96)00118-8

Whittaker D; Shields AJ; Simmons MY; Ritchie DA, 1997, 'X- singlet and triplet states at high magnetic fields', Physica Status Solidi A: Applications and Materials Science, 164, pp. 339 - 342, http://dx.doi.org/10.1002/1521-396X(199711)164:13.0.CO;2-H

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