297 citations · 748 across the 18 of their papers we have counts for
7 papers · 1 filter
First-principles theory of low-energy electron diffraction and quantum interference in few-layer graphene
John F. McClain, Jiebing Sun, Karsten Pohl +1
We present a computationally efficient method to incorporate density-functional theory into the calculation of reflectivity in low-energy electron microscopy. The reflectivity is d…
Electron spin-phonon interaction symmetries and tunable spin relaxation in silicon and germanium
Jian-Ming Tang, Brian T. Collins, Michael E. Flatté
Compared with direct-gap semiconductors, the valley degeneracy of silicon and germanium opens up new channels for spin relaxation that counteract the spin degeneracy of the inversi…
Magnetic circular dichroism from the impurity band in III-V diluted magnetic semiconductors
Jian-Ming Tang, Michael E. Flatte
The magnetic circular dichroism of III-V diluted magnetic semiconductors, calculated within a theoretical framework suitable for highly disordered materials, is shown to be dominat…
Onset of ferromagnetism in low-doped GaMnAs
B. L. Sheu, R. C. Myers, J. -M. Tang +4
We develop a quantitatively predictive theory for impurity-band ferromagnetism in the low-doping regime of GaMnAs and compare with experimental measurements of a series of samples…
Atom-by-Atom Substitution of Mn in GaAs and Visualization of their Hole-Mediated Interactions
Dale Kitchen, Anthony Richardella, Jian-Ming Tang +2
The discovery of ferromagnetism in Mn doped GaAs [1] has ignited interest in the development of semiconductor technologies based on electron spin and has led to several proof-of-co…
Spin-orientation-dependent spatial structure of a magnetic acceptor state in a zincblende semiconductor
Jian-Ming Tang, Michael E. Flatté
The spin orientation of a magnetic dopant in a zincblende semiconductor strongly influences the spatial structure of an acceptor state bound to the dopant. The acceptor state has a…
Multiband tight-binding model of local magnetism in GaMnAs
Jian-Ming Tang, Michael E. Flatte'
We present the spin and orbitally resolved local density of states (LDOS) for a single Mn impurity and for two nearby Mn impurities in GaAs. The GaAs host is described by a sp^3 ti…