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  1. No Access

    Article

    Electrical Study of Device Arrays on Thin Film Vanadium Dioxide

    The VO2 phase of vanadium oxide is known to exhibit large changes in the electrical and optical properties in the vicinity of the structural phase transition at 68C. Here, we report on the fabrication and study o...

    R. G. Mani, S. Ramanathan, V. Narayanamurti in MRS Online Proceedings Library (2007)

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    Article

    Linear Polarization Rotation Study of the Microwave-Induced Magnetoresistance Oscillations in the GaAs/AlGaAs System

    Microwave-induced zero-resistance states appear when the associated B-1-periodic magnetoresistance oscillations grow in amplitude and become comparable to the dark resistance of the two-dimensional electron syste...

    A. N. Ramanayaka, Tianyu Ye, H-C. Liu, R. G. Mani… in MRS Online Proceedings Library (2013)

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    Article

    Microwave Reflection From The Microwave Photo-Excited High Mobility GaAs/AlGaAs Two-Dimensional Electron System

    We examine the microwave reflection from the high mobility GaAs/AlGaAs two-dimensional electron system (2DES). Strong correlations have been observed between the microwave induced magnetoresistance oscillation...

    Tianyu Ye, R. G. Mani, W. Wegscheider in MRS Online Proceedings Library (2013)

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    Article

    Influence of microwave photo-excitation on the transport properties of the high mobility GaAs/AlGaAs 2D electron system

    We examined the influence of the microwave power on the diagonal resistance in the GaAs/AlGaAs two dimensional electron system (2DES), in order to extract the electron temperature and determine microwave induc...

    T. R. Nanayakkara, R. L. Samaraweera, A. Kriisa, U. Kushan Wijewardena… in MRS Advances (2019)

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    Article

    The role of surface morphology on nucleation density limitation during the CVD growth of graphene and the factors influencing graphene wrinkle formation

    CVD graphene growth typically uses commercially available cold-rolled copper foils, which includes a rich topography with scratches, dents, pits, and peaks. The graphene grown on this topography, even after an...

    Sajith Withanage, Tharanga Nanayakkara, U. Kushan Wijewardena… in MRS Advances (2019)