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  1. No Access

    Article

    Photoluminescence study on coarsening of self-assembled InAlAs quantum dots on GaAs (001)

    Red-emission at ∼640 nm from self-assembled In0.55Al0.45As/Al0.5Ga0.5As quantum dots grown on GaAs substrate by molecular beam epitaxy (MBE) has been demonstrated. We obtained a double-peak structure of photolumi...

    W. Zhou, B. Xu, H. Z. Xu, F. Q. Liu, J. B. Liang… in Journal of Electronic Materials (1999)

  2. No Access

    Article

    Bandgap Energies and Refractive Indices of Pb1-xSrxSe

    Optical transmission measurements were carried out on Pb1-xSrxSe samples with different Sr compositions (x ranging from 0 to 1) grown by molecular beam epitaxy (MBE). Refractive indices were calculated at room te...

    A. Majumdar, H. Z. Xu, F. Zhao, L. Jayasinghe… in MRS Online Proceedings Library (2003)

  3. No Access

    Article

    Resonant peak splitting in finite periodic superlattices with an unit cell of two barriers and two wells on monolayer graphene

    The general expressions for transmission probability and resonant peaks in one-dimensional N-periods graphene superlattice with unit cell of two barriers and two wells are analytically derived, and two types o...

    H. Z. Xu, S. Feng, Y. Zhang in Optical and Quantum Electronics (2019)

  4. No Access

    Article

    Symmetry of surface states in graphene superlattices terminated with magnetic cap layers

    The symmetry of surface states has been investigated with numerical calculations in graphene superlattices (SLs) terminated with magnetic cap layers. It is found that the surface states in SL of pure electric ...

    H. Z. Xu, Q. Q. Yan, L. Y. Wang, H. L. Wang, S. S. Wang… in Optical and Quantum Electronics (2021)