2.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck Institute of Microstructure PhysicsDE112 papers
- Rzeszów University of TechnologyPL27 papers
- Tbilisi State UniversityGE26 papers
- Forschungszentrum JülichDE25 papers
- Centre National de la Recherche ScientifiqueFR24 papers
- Johannes Gutenberg University MainzDE20 papers
- Adam Mickiewicz University in PoznańPL19 papers
- Friedrich Schiller University JenaDE17 papers
- University of KaiserslauternDE17 papers
- Lanzhou UniversityCN16 papers
- Polish Academy of SciencesPL16 papers
- Central South UniversityCN15 papers
41 papers · 1 filter
Colossal Spin Hall Effect in Ultrathin Metallic Films
Christian Herschbach, Dmitry V. Fedorov, Martin Gradhand +1
We predict spin Hall angles up to 80% for ultrathin noble metal films with substitutional Bi impurities. The colossal spin Hall effect is caused by enhancement of the spin Hall con…
Signature of the topological surface state in the thermoelectric properties of BiTe
F. Rittweger, N. F. Hinsche, P. Zahn +1
We present ab initio electronic structure calculations based on density functional theory for the thermoelectric properties of BiTe films. Conductivity and thermopower are…
A criterion for I-adic completeness
Peter Schenzel
Let denote an ideal in a commutative Noetherian ring . Let be an -module. The -adic completion is defined by . Then is call…
Pinning of thermal excitations at defects in artificial spin-ice dipolar arrays: A theoretical investigation
Danny Thonig, Jürgen Henk
In this theoretical investigation we address the effect of defects on thermal excitations in square-lattice dipolar arrays. The geometry of the nanomagnets, adopted from recent exp…
Helical multiferroics for electric field controlled quantum information processing
M. Azimi, L. Chotorlishvili, S. K. Mishra +3
Magnetoelectric coupling in helical multiferroics allows to steer spin order with electric fields. Here we show theoretically that in a helical multiferroic chain quantum informati…
Thermally activated in-plane magnetization rotation induced by spin torque
L. Chotorlishvili, Z. Toklikishvili, A. Sukhov +5
We study the role of thermal fluctuations on the spin dynamics of a thin permalloy film with a focus on the behavior of spin torque and find that the thermally assisted spin torque…
Fokker-Planck approach to the theory of magnon-driven spin Seebeck effect
L. Chotorlishvili, Z. Toklikishvili, V. K. Dugaev +3
Following the theoretical approach by Xiao et al [Phys. Rev. B 81, 214418 (2010)] to the spin Seebeck effect, we calculate the mean value of the total spin current flowing through…
Nuclear deformation and neutron excess as competing effects for pygmy dipole strength
R. Massarczyk, R. Schwengner, F. Dönau +27
The electromagnetic dipole strength below the neutron-separation energy has been studied for the xenon isotopes with mass numbers A = 124, 128, 132, and 134 in nuclear resonance fl…
Pointwise multiplication on vector-valued function spaces with power weights
Martin Meyries, Mark Veraar
We investigate pointwise multipliers on vector-valued function spaces over , equipped with Muckenhoupt weights. The main result is that in the natural parameter range…
Was ist Unendlichkeit - und wenn ja, wie viele?
Martin Meyries
This article, written in German language, gives a very elementary introduction to infinite sets. It is meant for interested non-mathematicians.
Chargeless spin current for switching and coupling of domain walls in magnetic nanowires
Chenglong Jia, Jamal Berakdar
The demonstration of the generation and control of a pure spin current (without net charge flow) by electric fields and/or temperature gradient has been an essential leap in the qu…
Angle-resolved time delay in photoemission of neon
J. Wätzel, A. S. Moskalenko, Y. Pavlyukh +1
We investigate theoretically the relative time delay of photoelectrons originating from the different subshells (2s and 2p) of neon. This quantity was measured via attosecond strea…
Beating the superparamagnetic size limit of nanoparticles on a ferroelectric substrate
A. Sukhov, L. Chotorlishvili, P. P. Horley +3
When decreasing the size of nanoscale magnetic particles their magnetization becomes vulnerable to thermal fluctuations as approaching the superparamgnetic limit, hindering thus ap…
Dynamics of the polarization of a pinned domain wall in a magnetic nanowire
N. Sedlmayr, V. Dugaev, J. Berakdar
We consider the dynamics of polarization of a single domain wall in a magnetic nanowire, which is strongly pinned by impurities. In this case the equation of motion for the polariz…
Insight into the skew-scattering mechanism of the spin Hall effect: potential scattering versus spin-orbit scattering
Christian Herschbach, Dmitry V. Fedorov, Ingrid Mertig +4
We present a detailed analysis of the skew-scattering contribution to the spin Hall conductivity using an extended version of the resonant scattering model of Fert and Levy [Phys.…
Twist-bend heliconical chiral nematic liquid crystal phase of an achiral rigid bent-core mesogen
Dong Chen, Michi Nakata, Renfan Shao +8
The chiral, heliconical (twist-bend) nematic ground state is reported in an achiral, rigid, bent-core mesogen (UD68). Similar to the nematic twist-bend (NTB) phase observed in bent…
Primal and Dual Approximation Algorithms for Convex Vector Optimization Problems
Andreas Löhne, Birgit Rudloff, Firdevs Ulus
Two approximation algorithms for solving convex vector optimization problems (CVOPs) are provided. Both algorithms solve the CVOP and its geometric dual problem simultaneously. The…
Experimental observation of a large ac-spin Hall effect
Dahai Wei, Martin Obstbaum, Christian Back +1
In spinelectronics the spin degree of freedom is used to transmit and store information. Ideally this occurs without net charge currents in order to avoid energy dissipation due to…
The evidence of quasi-free positronium state in GiPS-AMOC spectra of glycerol
D. Zvezhinskiy, M. Butterling, A. Wagner +2
We present the results of processing of Age-Momentum Correlation (AMOC) spectra that were measured for glycerol by the Gamma-induced positron spectroscopy (GiPS) facility. Our rese…
Inverse Spin Hall Effect in NiFe / Normal Metal Bilayers
M. Obstbaum, M. Härtinger, T. Meier +3
Spin pumping in ferromagnets provides a source of pure spin currents. Via the inverse spin Hall effect a spin current is converted into a charge current and a corresponding detecta…
Origin of Rashba-splitting in the quantized subbands at Bi2Se3 surface
H. M. Benia, A. Yaresko, A. P. Schnyder +4
We study the band structure of the topological insulator (111) surface using angle-resolved photoemission spectroscopy. We examine the situation where two…
Large-scale generation of computational models from biochemical pathway maps
Finja Büchel, Nicolas Rodriguez, Neil Swainston +23
Background: Systems biology projects and omics technologies have led to a growing number of biochemical pathway reconstructions. However, mathematical models are still most often c…
Exchange interaction and its tuning in magnetic binary chalcogenides
M. G. Vergniory, D. Thonig, M. Hoffmann +11
Using a first-principles Green's function approach we study magnetic properties of the magnetic binary chalcogenides Bi2Te3, Bi2Se3, and Sb2Te3. The magnetic coupling between trans…
Local Ionization Dynamics Traced by Photoassisted Scanning Tunneling Microscopy: A Theoretical Approach
M. Schueler, Y. Pavlyukh, J. Berakdar
For tracing the spatiotemporal evolution of electronic systems, we suggest and analyze theoretically a setup that exploits the excellent spatial resolution based on scanning tunnel…