99 citations · 696 across the 21 of their papers we have counts for
7 papers · 1 filter
An extensive comparison of anisotropies in MBE grown (Ga,Mn)As material
C. Gould, S. Mark, K. Pappert +14
This paper reports on a detailed magnetotransport investigation of the magnetic anisotropies of (Ga,Mn)As layers produced by various sources worldwide. Using anisotropy fingerprint…
Electron-mediated ferromagnetism and small spin-orbit interaction in a molecular-beam-epitaxy grown n-type heterostructure with Mn -doping
A. Bove, F. Altomare, N. B. Kundtz +4
We report the first evidence of electron-mediated ferromagnetism in a molecular-beam-epitaxy (MBE) grown heterostructure with Mn -doping. The interacti…
A novel technique to make Ohmic contact to a buried two-dimensional electron gas in a molecular-beam-epitaxy grown heterostructure with Mn -doping
A. Bove, F. Altomare, N. B. Kundtz +4
We report on the growth and characterization of a new Diluted Magnetic Semiconductor (DMS) heterostructure that presents a Two-Dimensional Electron Gas (2DEG) with a carrier densit…
Weak localization in GaMnAs: evidence of impurity band transport
L. P. Rokhinson, Y. Lyanda-Geller, Z. Ge +4
We report the observation of negative magnetoresistance in the ferromagnetic semiconductor GaMnAs at low temperatures ( K) and low magnetic fields ( mT). We attribut…
Near-bandgap wavelength-dependent studies of long-lived traveling coherent longitudinal acoustic phonon oscillations in GaSb/GaAs systems
J. K. Miller, J. Qi, Y. Xu +6
We report first studies of long-lived oscillations in optical pump-probe measurements on GaSb-GaAs heterostructures. The oscillations arise from a photogenerated coherent longitudi…
Very large magnetoresistance in lateral ferromagnetic (Ga,Mn)As wires with nanoconstrictions
C. Ruester, T. Borzenko, C. Gould +7
We have fabricated (Ga,Mn)As nanostructures in which domain walls can be pinned by sub-10 nm constrictions. Controlled by shape anisotropy, we can switch the regions on either side…