Robin Nicholas: Publications

OBSERVATION OF MAGNETIC-FIELD-INDUCED SEMIMETAL-SEMICONDUCTOR TRANSITIONS IN CROSSED-GAP SUPERLATTICES BY CYCLOTRON-RESONANCE

PHYSICAL REVIEW B 49:15 (1994) 10474-10483

Authors:

DJ BARNES, RJ NICHOLAS, RJ WARBURTON, NJ MASON, PJ WALKER, N MIURA

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ORIENTATION AND PRESSURE-DEPENDENCE OF THE BAND OVERLAP IN INAS/GASB STRUCTURES

SEMICONDUCTOR SCIENCE AND TECHNOLOGY 9:1 (1994) 118-122

Authors:

DM SYMONS, M LAKRIMI, RJ WARBURTON, RJ NICHOLAS, NJ MASON, PJ WALKER, MI EREMETS

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VARIATIONS OF THE HOLE EFFECTIVE MASSES INDUCED BY TENSILE STRAIN IN IN1-XGAXAS(P)/INGAASP HETEROSTRUCTURES

PHYSICAL REVIEW B 50:11 (1994) 7660-7667

Authors:

RW MARTIN, SL WONG, RJ WARBURTON, RJ NICHOLAS, AD SMITH, MA GIBBON, EJ THRUSH

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[001]-ORIENTED AND PIEZOELECTRIC-[111]-ORIENTED INAS/GASB STRUCTURES UNDER HYDROSTATIC-PRESSURE

PHYSICAL REVIEW B 49:23 (1994) 16614-16621

Authors:

DM SYMONS, M LAKRIMI, RJ WARBURTON, RJ NICHOLAS, NJ MASON, PJ WALKER, MI EREMETS, G HILL

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Infra-red cyclotron resonance of 'crossed' band gap superlattices at magnetic fields of up to 150T

Proceedings of SPIE - The International Society for Optical Engineering 2104 (1993) 638-639

Authors:

DJ Barnes, RJ Nicholas, RJ Warburton, NJ Mason, PJ Walker, N Miura

Abstract:

This paper presents an investigation of the effect of layer periodicity and magnetic field on the band gap of InAs/GaSb and InAs/GaInSb superlattices. The cyclotron resonance (CR) of these samples has been studied using CO2 and CO lasers which produce wavelengths of around 10μm and 5μm respectively. Pulsed magnetic fields of up to 150T with a duration of 5μsec were generated using a destructive, single-turn coil magnet and the transmitted radiation measured using a fast-response HgCdTe detector. In conclusion, the authors present direct evidence for the semimetal to semiconductor transition in type II superlattices caused by the formation of periodicity dependent subbands and also by the uncrossing of the electron and hole Landau levels at high magnetic fields.

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Robin Nicholas

Sub department

OBSERVATION OF MAGNETIC-FIELD-INDUCED SEMIMETAL-SEMICONDUCTOR TRANSITIONS IN CROSSED-GAP SUPERLATTICES BY CYCLOTRON-RESONANCE

Authors:

ORIENTATION AND PRESSURE-DEPENDENCE OF THE BAND OVERLAP IN INAS/GASB STRUCTURES

Authors:

VARIATIONS OF THE HOLE EFFECTIVE MASSES INDUCED BY TENSILE STRAIN IN IN1-XGAXAS(P)/INGAASP HETEROSTRUCTURES

Authors:

[001]-ORIENTED AND PIEZOELECTRIC-[111]-ORIENTED INAS/GASB STRUCTURES UNDER HYDROSTATIC-PRESSURE

Authors:

Infra-red cyclotron resonance of 'crossed' band gap superlattices at magnetic fields of up to 150T

Authors:

Abstract:

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