211 citations · 543 across the 9 of their papers we have counts for
8 papers · 1 filter
First-principles insight in structure-property relationships of hexagonal Si and Ge polytypes
Martin Keller, Abderrezak Belabbes, Jürgen Furthmüller +2
Hexagonal SiGe is a promising material for combining electronic and photonic technologies. In this work, the energetic, structural, elastic and electronic properties of the hexagon…
Band lineup at hexagonal SiGe/SiGe alloy interfaces
Abderrezak Belabbes, Silvana Botti, Friedhelm Bechstedt
The natural and true band profiles at heterojunctions formed by hexagonal SiGe alloys are investigated by a variety of methods: density functional theory for atomic geo…
Giant optical oscillator strengths in perturbed hexagonal germanium
Abderrezak Belabbes, Friedhelm Bechstedt, Silvana Botti
We present ab initio calculations of electronic and optical properties of perturbed hexagonal germanium and demonstrate that it is a superior material for active optoelectronic dev…
Indirect Chiral Magnetic Exchange through Dzyaloshinskii-Moriya--Enhanced RKKY Interactions in Manganese Oxide Chains on Ir(100)
Martin Schmitt, Paolo Moras, Gustav Bihlmayer +9
Ruderman-Kittel-Kasuya-Yosida interaction even if their wave functions lack direct overlap. Theory predicts that spin-orbit scattering leads to a Dzyaloshinskii-Moriya type enhance…
Microscopic Origin of Interfacial Dzyaloshinskii-Moriya Interaction
Sanghoon Kim, Kohei Ueda, Gyungchoon Go +15
Chiral spin textures at the interface between ferromagnetic and heavy nonmagnetic metals, such as Neel-type domain walls and skyrmions, have been studied intensively because of the…
Oxygen-enabled control of Dzyaloshinskii-Moriya Interaction in ultra-thin magnetic films
Abderrezak Belabbes, Gustav Bihlmayer, Stefan Blügel +1
The search for chiral magnetic textures in systems lacking spatial inversion symmetry has attracted a massive amount of interest in the recent years with the real space observation…
Electronic bands of III-V semiconductor polytypes and their alignment
Abderrezak Belabbes, Christian Panse, Jürgen Furthmüller +1
The quasiparticle band structures of four polytypes 3C, 6H, 4H, and 2H of GaP, GaAs, GaSb, InP, InAs, and InSb are computed with high accuracy including spin-orbit interaction appl…
Direct experimental determination of the spontaneous polarization of GaN
Jonas Lähnemann, Oliver Brandt, Uwe Jahn +8
We present a universal approach for determining the spontaneous polarization Psp of a wurtzite semiconductor from the emission energies of excitons bound to the different types of…