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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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22 papers · 2 filters
Time-Resolved XUV absorption spectroscopy and magnetic circular dichroism at the Ni -edges
Marcel Hennes, Benedikt Rösner, Valentin Chardonnet +21
Ultrashort optical pulses can trigger a variety of non-equilibrium processes in magnetic thin films affecting electrons and spins on femtosecond timescales. In order to probe the c…
Dispersing and semi-flat bands in the wide band gap two-dimensional semiconductor bilayer silicon oxide
G. Kremer, J. C. Alvarez-Quiceno, T. Pierron +11
Epitaxial bilayer silicon oxide is a transferable two-dimensional material predicted to be a wide band gap semiconductor, with potential applications for deep UV optoelectronics, o…
Exploring the transfer of plasticity across Laves phase interfaces in a dual phase magnesium alloy
Julien Guénolé, Muhammad Zubair, Swagata Roy +4
The mechanical behaviour of Mg-Al alloys can be largely improved by the formation of an intermetallic Laves phase skeleton, in particular the creep strength. Recent nanomechanical…
Transversal growth microstructures of quasicrystalline Ti-Zr-Ni films
Valerie Brien, A. Dauscher, P. Weisbecker +2
Pulsed laser deposition from a Nd:YAG laser was employed in production of hundreds of nanometer thick quasicrystalline Ti-Zr-Ni films on glass substrate. The influence of depositio…
Optical reflectivity as a simple diagnostic method for testing structural quality of icosahedral quasicrystals
Valerie Brien, Anne Dauscher, F. Machizaud
Optical reflectivity as a simple diagnostic method for testing structural quality of icosahedral quasicrystals 2 The optical reflectivity of Al-based and Ti-based quasicrystalline…
Optical characterization of nanocrystallized AlN:Er films prepared by magnetron sputtering
Valerie Brien, Manuel Dossot, Hervé Rinnert +3
In the prospect of understanding the photoluminescence mechanisms of AlN films doped with erbium and targeting photonic applications we have synthesized non doped and Er-doped AlN…
Effect of tensile stresses on bainitic isothermal transformation
T. Su, M. Veaux, E. Aeby-Gautier +3
The effects of tensile stresses on isothermal bainitic transformation were studied in the case of a 35MV7 steel. The modification of transformation kinetics and the presence of tra…
Growth of a textured quasicrystalline phase in Ti-Ni-Zr films prepared by pulsed laser deposition
Valerie Brien, A. Dauscher, P. Weisbecker +1
The preparation in thin film form of the known icosahedral phase in Ti-Ni-Zr bulk alloys has been investigated as a function of substrate temperature. Films were deposited by Pulse…
Commensurability between element symmetry and the number of skyrmions governing skyrmion diffusion in confined geometries
Chengkun Song, Nico Kerber, Jan Rothörl +10
Magnetic skyrmions are topological magnetic structures, which exhibit quasi-particle properties and can show enhanced stability against perturbation from thermal noise. Recently, t…
Engineering the magnetic and magnetocaloric properties of PrVO3 epitaxial oxide thin films by strain effects
H. Bouhani, A. Endichi, D. Kumar +10
Combining multiple degrees of freedom in strongly-correlated materials such as transition-metal oxides would lead to fascinating magnetic and magnetocaloric features. Herein, the s…
Phonon-based partition of (ZnSe-like) semiconductor mixed crystals on approach to their pressure-induced structural transition
M. B. Shoker, O. Pagès, V. J. B. Torres +10
The generic 1-bond:2-mode percolation type Raman signal inherent to the short bond of common (A,B)C semiconductor mixed crystals with zincblende (cubic) structure is exploited as a…
Determination of the spin Hall angle, spin mixing conductance and spin diffusion length in Ir/CoFeB for spin-orbitronic devices
T. Fache, J. C. Rojas-Sánchez, L. Badie +2
Iridium is a very promising material for spintronic applications due to its interesting magnetic properties such as large RKKY exchange coupling as well as its large spin-orbit cou…
Substrate screening approach for quasiparticle energies of two-dimensional interfaces with lattice mismatch
Chunhao Guo, Junqing Xu, Dario Rocca +1
Two-dimensional (2D) materials are outstanding platforms for exotic physics and emerging applications by forming interfaces. In order to efficiently take into account the substrate…
Tailoring femtosecond hot-electron pulses for ultrafast spin manipulation
Nicolas Bergeard, Michel Hehn, Karel Carva +3
We have measured the hot-electron induced demagnetization of a [Co/Pt]2 multilayer in M(x nm)/Cu(100 nm)/[Co(0.6 nm)/Pt(1.1 nm)]2 samples depending on the nature of the capping lay…
Strain-engineering the topological type-II Dirac semimetal NiTe
Pedro P. Ferreira, Antonio L. R. Manesco, Thiago T. Dorini +4
In the present work, we investigated the electronic and elastic properties in equilibrium and under strain of the type-II Dirac semimetal NiTe using density functional theory (…
Exploring charge density distribution and electronic properties of hybrid organic-germanium layers
Flavio Bento de Oliveira, Erika Nascimento Lima, Andreia Luisa da Rosa +2
Band gap tuning and dielectric properties of small organic ligands adsorbed on bidimensional germanium monolayers (germanene) have been investigated using first-principles calculat…
Transferability of neural network potentials for varying stoichiometry: phonons and thermal conductivity of MnGe compounds
Claudia Mangold, Shunda Chen, Giuseppe Barbalinardo +7
Germanium manganese compounds exhibit a variety of stable and metastable phases with different stoichiometry. These materials entail interesting electronic, magnetic and thermal pr…
T2 phase site occupancies in the Cr--Si--B system: a combined synchroton-XRD/first-principles study
Thiago T. Dorini, Bruno X. de Freitas, Pedro P. Ferreira +6
Boron and Silicon site occupancies of the T2 phase in the Cr-Si-B system were investigated experimentally and by first-principles electronic-structure calculations within the scope…
Self-consistent potential correction for charged periodic systems
Mauricio Chagas da Silva, Michael Lorke, Bálint Aradi +5
Supercell models are often used to calculate the electronic structure of local perturbations from the ideal periodicity in the bulk or on the surface of a crystal or in wires. When…
Temperature dependence of transport mechanisms in organic multiferroic tunnel junctions
Can Xiao, Huawei Sun, Luming Cheng +14
Organic multiferroic tunnel junctions (OMFTJs) with multi-resistance states have been proposed and drawn intensive interests due to their potential applications, for examples of me…
Faster chiral versus collinear magnetic order recovery after optical excitation revealed by femtosecond XUV scattering
Nico Kerber, Dmitriy Ksenzov, Frank Freimuth +11
While chiral spin structures stabilized by Dzyaloshinskii-Moriya interaction (DMI) are candidates as novel information carriers, their dynamics on the fs-ps timescale is little kno…
Thermal transport across nanometre gaps: phonon transmission vs air conduction
A. Alkurdi, C. Adessi, F. Tabatabaei +3
Heat transfer between two surfaces separated by a nanometre gap is important for a number of applications ranging from spaced head disk systems, scanning thermal microscopy and the…