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8 papers · 2 filters
Strongly spin-orbit coupled two-dimensional electron gas emerging near the surface of polar semiconductors
M. Sakano, M. S. Bahramy, A. Katayama +12
We investigate the two-dimensional (2D) highly spin-polarized electron accumulation layers commonly appearing near the surface of n-type polar semiconductors BiTeX (X = I, Br, and…
Measurement of specific contact resistivity using scanning voltage probes
Weigang Wang, Malcolm R. Beasley
Specific contact resistivity measurements have conventionally been heavy in both fabrication and simulation/calculation in order to account for complicated geometries and other eff…
Free-carrier relaxation and lattice heating in photoexcited bismuth thin films
Y. M. Sheu, Y. J. Chien, C. Uher +2
We report ultrafast surface pump and interface probe experiments on photoexcited carrier transport across single crystal bismuth films on sapphire. The film thickness is sufficient…
High temperature magnetic insulating phase in ultrathin La0.67Sr0.33MnO3 films
Hans Boschker, Jaap Kautz, Evert P. Houwman +6
We present a study of the thickness dependence of magnetism and electrical conductivity in ultra thin La0.67Sr0.33MnO3 films grown on SrTiO3 (110) substrates. We found a critical t…
Towards More Accurate Molecular Dynamics Calculation of Thermal Conductivity. Case Study: GaN Bulk Crystals
X. W. Zhou, S. Aubry, R. E. Jones +2
Significant differences exist among literature for thermal conductivity of various systems computed using molecular dynamics simulation. In some cases, unphysical results, for exam…
Molecular Dynamics Prediction of Thermal Conductivity of GaN Films and Wires at Realistic Length Scales
X. W. Zhou, R. E. Jones, S. Aubry
Recent molecular dynamics simulation methods have enabled thermal conductivity of bulk materials to be estimated. In these simulations, periodic boundary conditions are used to ext…