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Semiclassical framework for the calculation of transport anisotropies
Karel Vyborny, Alexey A. Kovalev, Jairo Sinova +1
We present a procedure for finding the exact solution to the linear-response Boltzmann equation for two-dimensional anisotropic systems and demonstrate it on examples of non-crysta…
Coherent control of magnetization precession in ferromagnetic semiconductor (Ga,Mn)As
E. Rozkotova, P. Nemec, N. Tesarova +5
We report single-color, time resolved magneto-optical measurements in ferromagnetic semiconductor (Ga,Mn)As. We demonstrate coherent optical control of the magnetization precession…
Low voltage control of ferromagnetism in a semiconductor p-n junction
M. H. S. Owen, J. Wunderlich, V. Novak +8
The concept of low-voltage depletion and accumulation of electron charge in semiconductors, utilized in field-effect transistors (FETs), is one of the cornerstones of current infor…
Light-induced magnetization precession in GaMnAs
E. Rozkotova, P. Nemec, P. Horodyska +7
We report dynamics of the transient polar Kerr rotation (KR) and of the transient reflectivity induced by femtosecond laser pulses in ferromagnetic (Ga,Mn)As with no external magne…
Laser-induced Precession of Magnetization in GaMnAs
E. Rozkotova, P. Nemec, D. Sprinzl +7
We report on the photo-induced precession of the ferromagnetically coupled Mn spins in (Ga,Mn)As, which is observed even with no external magnetic field applied. We concentrate on…
Huge tunnelling anisotropic magnetoresistance in (Ga,Mn)As nanoconstrictions
A. D. Giddings, O. N. Makarovsky, M. N. Khalid +8
We report large anisotropic magnetoresistance (AMR) behaviours in single lateral (Ga,Mn)As nanoconstriction of up to 1300%, along with large multistable telegraphic switching. The…