Zobrazeno 1 - 10
of 413
pro vyhledávání: '"Wimmer, S"'
Autor:
Wimmer, S., Sánchez-Barriga, J., Küppers, P., Ney, A., Schierle, E., Freyse, F., Caha, O., Michalicka, J., Liebmann, M., Primetzhofer, D., Hoffmann, M., Ernst, A., Otrokov, M. M., Bihlmayer, G., Weschke, E., Lake, B., Chulkov, E. V., Morgenstern, M., Bauer, G., Springholz, G., Rader, O.
Publikováno v:
Adv. Mater. (1st September 2021)
Ferromagnetic topological insulators exhibit the quantum anomalous Hall effect that might be used for high precision metrology and edge channel spintronics. In conjunction with superconductors, they could host chiral Majorana zero modes which are amo
Externí odkaz:
http://arxiv.org/abs/2011.07052
Autor:
Gladii, O., Frangou, L., Hallal, A., Seeger, R. L., Noel, P., Forestier, G., Auffret, S., Rubio-Roy, M., Warin, P., Vila, L., Wimmer, S., Ebert, H., Gambarelli, S., Chshiev, M., Baltz, V.
Publikováno v:
Phys. Rev. B 100, 174409 (2019)
We investigated the self-induced inverse spin Hall effect in ferromagnets. Temperature (T), thickness (t) and angular-dependent measurements of transverse voltage in spin pumping experiments were performed with permalloy films. Results revealed non-m
Externí odkaz:
http://arxiv.org/abs/1909.00976
Autor:
Rienks, E. D. L., Wimmer, S., Mandal, P. S., Caha, O., Růžička, J., Ney, A., Steiner, H., Volobuev, V. V., Groiss, H., Albu, M., Khan, S. A., Minár, J., Ebert, H., Bauer, G., Varykhalov, A., Sánchez-Barriga, J., Rader, O., Springholz, G.
Magnetically doped topological insulators enable the quantum anomalous Hall effect (QAHE) which provides quantized edge states for lossless charge transport applications. The edge states are hosted by a magnetic energy gap at the Dirac point but all
Externí odkaz:
http://arxiv.org/abs/1810.06238
Autor:
Mu, Sai, Samolyuk, G. D., Wimmer, S., Troparevsky, M. C., Khan, S., Mankovsky, S., Ebert, H., Stocks, G. M.
Publikováno v:
npj Computational Materials, 5, 1 (2019)
Whilst it has long been known that disorder profoundly affects transport properties, recent measurements on a series of solid solution 3d-transition metal alloys reveal two orders of magnitude variations in the residual resistivity. Using ab-initio m
Externí odkaz:
http://arxiv.org/abs/1806.03785
Publikováno v:
Phys. Rev. B 98, 104406 (2018)
The modification of the magnetization dissipation or Gilbert damping caused by an inhomogeneous magnetic structure and expressed in terms of a wave vector dependent tensor $\underline{\alpha}(\vec{q})$ is investigated by means of linear response theo
Externí odkaz:
http://arxiv.org/abs/1805.11468
Publikováno v:
Phys. Rev. B 98, 020406 (2018)
Resistivity $\rho$, thermopower ${\cal S}$, and thermal conductivity $\kappa$ were measured simultaneously on a set of CoFe alloy films. Variation of the Co-content $x_\mathrm{Co}$ allows for a systematic tuning of the Fermi level through the band st
Externí odkaz:
http://arxiv.org/abs/1802.01038
Publikováno v:
Phys. Rev. B 97, 024403 (2018)
The composition-dependent behavior of the Dzyaloshinskii-Moriya interaction (DMI), the spin-orbit torque (SOT), as well as anomalous and spin Hall conductivities of Mn$_{1-x}$Fe$_x$Ge alloys have been investigated by first-principles calculations usi
Externí odkaz:
http://arxiv.org/abs/1710.07248
Publikováno v:
Phys. Rev. Lett. 121, 096601 (2018)
We compute the thermal conductivity and electrical resistivity of solid hcp Fe to pressures and temperatures of Earth's core. We find significant contributions from electron-electron scattering, usually neglected at high temperatures in transition me
Externí odkaz:
http://arxiv.org/abs/1710.03564
Publikováno v:
Phys. Rev. B 92, 041101 (2015)
For certain non-magnetic solids with low symmetry the occurrence of spin-polarized longitudinal currents is predicted. These arise due to an interplay of spin-orbit interaction and the particular crystal symmetry. This result is derived using a group
Externí odkaz:
http://arxiv.org/abs/1502.04947
Publikováno v:
Phys. Rev. B 88, 201108(R) (2013)
A first-principles description of the spin Nernst effect, denoting the occurrence of a transverse spin current due to a temperature gradient, is presented. The approach, based on an extension to the Kubo-Streda equation for spin transport, supplies i
Externí odkaz:
http://arxiv.org/abs/1311.5047