22 citations · 84 across the 6 of their papers we have counts for
6 papers
Interface-driven phase separation in multifunctional materials: the case of GeMn ferromagnetic semiconductor
Emmanuel Arras, Frédéric Lançon, Ivetta Slipukhina +11
We use extensive first principle simulations to show the major role played by interfaces in the mechanism of phase separation observed in semiconductor multifunctional materials. W…
Strain and correlation of self-organized Ge_(1-x)Mn_x nanocolumns embedded in Ge (001)
S. Tardif, V. Favre-Nicolin, F. Lançon +8
We report on the structural properties of Ge_(1-x)Mn_x layers grown by molecular beam epitaxy. In these layers, nanocolumns with a high Mn content are embedded in an almost-pure Ge…
Probing punctual magnetic singularities during magnetization process in FePd films
Aurélien Masseboeuf, Thomas Jourdan, Frédéric Lançon +2
We report the use of Lorentz microscopy to observe the domain wall structure during the magnetization process in FePd thin foils. We have focused on the magnetic structure of domai…
Structural fuzziness of large gold clusters
Kuo Bao, Stefan Goedecker, Kenji Koga +2
The energetic ground state of gold clusters with up to 314 atoms consists of rather complicated geometries that have only a weak resemblance to the perfect icosahedra, decahedra an…
Structure determination of the (3sqrt{3}x3sqrt{3}) reconstructed alpha-Al_2O_3(0001)
Igor Vilfan, Thierry Deutsch, Frederic Lancon +1
Grazing-incidence X-ray diffraction data are combined with energy-minimization calculations to analyse the atomic structure of the Al-rich (3sqrt{3} x 3sqrt{3})R 30 deg reconstruct…
Linear scaling relaxation of the atomic positions in nano structures
Stefan Goedecker, Frederic Lancon, Thierry Deutsch
We present a method to determine the equilibrium geometry of large atomistic systems with linear scaling. It is based on a separate treatment of long and short wavelength component…