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24 papers · 2 filters
Biquadratic and ring exchange interactions in orthorhombic perovskite manganites
Natalya S. Fedorova, Claude Ederer, Nicola A. Spaldin +1
We use ab initio electronic structure calculations within the generalized gradient approximation (GGA+U) to density functional theory (DFT) to determine the microscopic exchange in…
Collinear order in a frustrated three-dimensional spin- antiferromagnet LiCuWO
K. M. Ranjith, R. Nath, M. Skoulatos +4
Magnetic frustration in three dimensions (3D) manifests itself in the spin- insulator LiCuWO. Density-functional band-structure calculations reveal a peculiar…
Micro-metric electronic patterning of a topological band structure using a photon beam
Emmanouil Frantzeskakis, Nick de Jong, Berend Zwartsenberg +12
In an ideal 3D topological insulator (TI), the bulk is insulating and the surface conducting due to the existence of metallic states that are localized on the surface; these are th…
All-optical magnetization switching in ferrimagnetic alloys: deterministic vs thermally activated dynamics
L. Le Guyader, S. El Moussaoui, M. Buzzi +7
Using photo-emission electron microscopy with X-ray magnetic circular dichroism as a contrast mechanism, new insights into the all-optical magnetization switching (AOS) phenomenon…
Defect propagation in one-, two-, and three-dimensional compounds doped by magnetic atoms
A. Furrer, A. Podlesnyak, K. W. Krämer +1
Inelastic neutron scattering experiments were performed to study manganese(II) dimer excitations in the diluted one-, two-, and three-dimensional compounds CsMn(x)Mg(1-x)Br(3), K(2…
Surface aligned magnetic moments and hysteresis of an endohedral single-molecule magnet on a metal
Rasmus Westerström, Anne-Christine Uldry, Roland Stania +10
The interaction between the endohedral unit in the single-molecule magnet DyScN@C and a rhodium (111) substrate leads to alignment of the Dy 4 orbitals. The resulting…