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9 papers · 1 filter
Microscopic mechanism of the non-crystalline anisotropic magnetoresistance in (Ga,Mn)As
Karel Výborný, Jan Kucera, Jairo Sinova +3
Starting with a microscopic model based on the Kohn-Luttinger Hamiltonian and kinetic p-d exchange combined with Boltzmann formula for conductivity we identify the scattering from…
Any order imaginary time propagation method for solving the Schrodinger equation
Siu A. Chin, S. Janecek, E. Krotscheck
The eigenvalue-function pair of the 3D Schrödinger equation can be efficiently computed by use of high order, imaginary time propagators. Due to the diffusion character of the kine…
Pathways of bond topology transitions at the interface of silicon nanocrystals and amorphous silica matrix
D. E. Yılmaz, C. Bulutay, T. Çağın
The interface chemistry of silicon nanocrystals (NCs) embedded in amorphous oxide matrix is studied through molecular dynamics simulations with the chemical environment described b…
Anomalously large measured thermoelectric power factor in SrLaTiO thin films due to SrTiO substrate reduction
Matthew L. Scullin, Choongho Yu, Mark Huijben +6
We report the observation that thermoelectric thin-films of La-doped SrTiO3 grown on SrTiO3 substrates yield anomalously high values of thermopower to give extraordinary values of…
Curie point singularity in the temperature derivative of resistivity in (Ga,Mn)As
V. Novak, K. Olejnik, J. Wunderlich +8
We observe a singularity in the temperature derivative of resistivity at the Curie point of high-quality (Ga,Mn)As ferromagnetic semiconductors with 's ranging from ap…
On the character of states near the Fermi level in (Ga,Mn)As: impurity to valence band crossover
T. Jungwirth, Jairo Sinova, A. H. MacDonald +15
We discuss the character of states near the Fermi level in Mn doped GaAs, as revealed by a survey of dc transport and optical studies over a wide range of Mn concentrations. A ther…