73 citations · 204 across the 8 of their papers we have counts for
7 papers · 1 filter
Magneto-optical Properties of Reduced Titania Probed by First-principles Calculations: Polarons
C. Echeverria-Arrondo, H. Raebiger, J. Perez-Conde +2
The magneto-optical properties of titanium dioxide systems are related to the presence of impurity states in the band gap due to oxygen vacancies. To understand about the interplay…
Resistive Switching in Nanodevices
Hannes Raebiger, Antonio Claudio M. Padilha, Alexandre R. Rocha +1
Passing current at given threshold voltages through a metal/insulator/metal sandwich structure device may change its resistive state. Such resistive switching is unique to nanoscal…
Molecular Motion on Semiconductor Surface via Tip-enhanced Multiple Excitation
Tatsuya Momose, Ken-ichi Shudo, Hannes Raebiger +5
In a low-temperature study with a scanning tunneling microscope (STM), the irreducible lateral motion of a CO molecule adsorbed on a Si(001) surface showed a hyperlinear dependence…
Diffusion and clustering of substitutional Mn in (Ga,Mn)As
Hannes Raebiger, Maria Ganchenkova, Juhani von Boehm
The Ga vacancy mediated microstructure evolution of (Ga,Mn)As during growth and post-growth annealing is studied using a multi-scale approach. The migration barriers for the Ga vac…
High Curie temperatures in (Ga,Mn)N from Mn clustering
Teemu Hynninen, Hannes Raebiger, Andres Ayuela +1
The effect of microscopic Mn cluster distribution on the Curie temperature (Tc) is studied using density-functional calculations. We find that the calculated Tc depends crucially o…
Electronic and magnetic properties of substitutional Mn clusters in (Ga,Mn)As
H. Raebiger, A. Ayuela, J. von Boehm
The magnetization and hole distribution of Mn clusters in (Ga,Mn)As are investigated by all-electron total energy calculations using the projector augmented wave method within the…
Intrinsic hole localization mechanism in magnetic semiconductors
H. Raebiger, A. Ayuela, R. M. Nieminen
The interplay between clustering and exchange coupling in magnetic semiconductors for the prototype (Ga_{1-x},Mn_x)As with manganese concentrations x of 1/16 and 1/32 in the intere…