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7 papers · 2 filters
Scanning Tunneling Microscopy Study of Square Manganese Tetramers on Mn3N2 (001)
Rong Yang, Haiqiang Yang, Arthur R. Smith
We have investigated the growth of antiferromagnetic Mn3N2(001) on MgO (001) by molecular beam epitaxy and scanning tunneling microscopy . The images show smooth terraces and atomi…
Atomistic simulation of light-induced changes in hydrogenated amorphous silicon
T. A. Abtew, D. A. Drabold
We employ ab initio molecular dynamics to simulate the response of hydrogenated amorphous silicon to light exposure (Staebler-Wronski effect). We obtain improved microscopic unders…
Energy Dependent Contrast in Atomic-Scale Spin-Polarized Scanning Tunneling Microscopy ofMn3N2(010): Experiment and First-Principles Theory
Rong Yang, Haiqiang Yang, Arthur R. Smith +2
The technique of spin-polarized scanning tunneling microscopy is investigated for its use in determining fine details of surface magnetic structure down to the atomic scale. As a m…
Spin injection and accumulation in inhomogeneous semiconductors
Dan Csontos, Sergio E. Ulloa
We present a study of spin transport in charge and spin inhomogeneous semiconductor systems. In particular, we investigate the propagation of spin-polarized electrons through a bou…
STM Single Atom/Molecule Manipulation and Its Application to Nanoscience and Technology
Saw-Wai Hla
Single atom/molecule manipulation with a scanning-tunneling-microscope (STM) tip is an innovative experimental technique of nanoscience. Using STM-tip as an engineering or analytic…
Landau level mixing by full spin-orbit interactions
Mahdi. Zarea, Sergio. E. Ulloa
We study a two-dimensional electron gas in a perpendicular magnetic field in the presence of both Rashba and Dresselhaus spin-orbit interactions. Using a Bogoliubov transformation…