Dallas, Texas, United States of America
  •  5
    © 2015 Taylor & Francis. This analysis compares the climate impacts over North America during winter associated with various El Niño-Southern Oscillation indices, including the Niño 3.4 index, the leading tropical Pacific outgoing longwave radiation and sea surface temperature covariability, and the eastern Pacific and central Pacific types of ENSO identified from both partial-regression-empirical orthogonal function and regression-EOF approaches. The traditional Niño 3.4 SST index is found to b…Read more
  •  4
    Electron behavior in topological insulator based P-N overlayer interfaces
    with M. la WrayNeupane, S. -Y. Xu, Y. -Q. Xia, A. V. Fedorov, S. Basak, A. Bansil, Y. S. Hor, R. J. Cava, and M. Z. Hasan
    Topological insulators are novel materials that manifest spin-polarized Dirac states on their surfaces or at interfaces made with conventional matter. We have measured the electron kinetics of bulk doped TI Bi$_2$Se$_3$ with angle resolved photoemission spectroscopy while depositing cathodic and anodic adatoms on the TI surfaces to add charge carriers of the opposite sign from bulk dopants. These P-N overlayer interfaces create Dirac point transport regimes and larger interface potentials than p…Read more