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71 papers · 1 filter
Electronic Structure, Electron-Phonon Coupling, and Multiband Effects in MgB2
I. I. Mazin, V. P. Antropov
We review the current situation in the theory of superconducting and transport properties of MgB2. First principle calculations of of the electronic structure and electron-phonon c…
Thermonuclear Supernovae: Simulations of the Deflagration Stage and Their Implications
V. N. Gamezo, A. M. Khokhlov, E. S. Oran +2
Large-scale three-dimensional numerical simulations of the deflagration stage of a thermonuclear supernova explosion show the formation and evolution of a highly convoluted turbule…
Astrometric Calibration of the Sloan Digital Sky Survey
Jeffrey R. Pier, Jeffrey A. Munn, Robert B. Hindsley +4
The astrometric calibration of the Sloan Digital Sky Survey is described. For point sources brighter than r ~ 20 the astrometric accuracy is 45 milliarcseconds (mas) rms per coordi…
Variable-Range Hopping of Spin Polarons: Magnetoresistance in a Modified Mott Regime
M. Foygel, R. D. Morris, A. G. Petukhov
We analize electrical conductivity controlled by hopping of bound spin polarons in disordered solids with wide distributions of electron energies and polaron shifts (barriers). By…
Electron Spin Polarization in Resonant Interband Tunneling Devices
A. G. Petukhov, D. O. Demchenko, A. N. Chantis
We study spin-dependent interband resonant tunneling in double-barrier InAs/AlSb/ GaMnSb heterostructures. We demonstrate that these structures can be used as spin filters utilizin…
Electronic structure and magnetic anisotropy of the [Co_4(hmp)_4(CH_3OH)_4Cl_4] molecule
Tunna Baruah, Mark R. Pederson
Accurate density-functional based calculations have been performed on the Co_4(hmp)_4(CH_3OH)_4Cl_4 molecular magnet where hmp is deprotonated hydroxymethyl pyridine. In addition t…