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  1. No Access

    Chapter and Conference Paper

    The nucleation structure for cracks in AlGaN epitaxial layers

    When an epitaxial layer is under tensile strain due to lattice mismatch, cracks are expected to form above a critical thickness. In the case of Group III nitrides grown on the sapphire (0001) plane, the epitax...

    R T Murray, P J Parbrook, G Hill, I M Ross in Microscopy of Semiconducting Materials (2005)

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    Chapter and Conference Paper

    Magnetotunnelling Spectroscopy to Measure the Electron and Hole ε(k) Dispersion Curves in the Quantum Well of Resonant Tunnelling Structures

    We investigate the effect of a large magnetic field, B, applied parallel to the plane of the barriers on the resonant I(V) currents of n- and p-type double barrier structures. The shifts in the electron resona...

    L. Eaves, R. K. Hayden, D. K. Maude… in High Magnetic Fields in Semiconductor Phys… (1992)

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    Chapter and Conference Paper

    Resonant Tunnelling Devices in a Quantising Magnetic Field

    High magnetic fields, applied either parallel or perpendicular to the barriers, are extremely useful for investigating the electrical properties of resonant tunnelling structures [1–11]. By considering the cur...

    L. Eaves, E. S. Alves, M. Henini… in High Magnetic Fields in Semiconductor Phys… (1989)

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    Chapter and Conference Paper

    Magnetic Field Studies of Resonant and Non-resonant Tunnelling in n-(AlGa)As/GaAs Double Barrier Structures

    The electrical properties of a series of double barrier tunnelling devices with well widths between 5 and 60 nm are investigated. It is shown that the bistability effect in the current-voltage characteristics ...

    L. Eaves, E. S. Alves, T. J. Foster… in Physics and Technology of Submicron Struct… (1988)

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    Chapter and Conference Paper

    Resonant Magnetotransport in Short (0.25 – 9 μm) n+nn+ GaAs Structures

    Magnetophonon resonance in thin (0.25 – 9 μm) n+nn+ GaAs structures is used to study quasi-elastic inter-Landau level scattering which is induced in the high electric fields (up to 20 kV/cm) achievable in structu...

    P. S. S. Guimarães, L. Eaves, J. C. Portal… in Proceedings of the 17th International Conf… (1985)

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    Chapter and Conference Paper

    Close Binary Stars

    Commission 42 convened for two business meetings and two scientific sessions. In the following, the minutes of the business meetings and a summary of the scientific meetings are presented, with the abstracts o...

    R. H. Koch, V. Piirola, D. M. Gibson… in Transactions of the International Astronom… (1977)