Zobrazeno 1 - 10
of 464
pro vyhledávání: '"Fecher, Gerhard H"'
Autor:
He, Yangkun, Kroder, Johannes, Gayles, Jacob, Fu, Chenguang, Pan, Yu, Schnelle, Walter, Felser, Claudia, Fecher, Gerhard H.
Publikováno v:
Appl. Phys. Lett. 117, 052409 (2020)
The Berry phase understanding of electronic properties has attracted special interest in condensed matter physics, leading to phenomena such as the anomalous Hall effect and the topological Hall effect. A non-vanishing Berry phase, induced in momentu
Externí odkaz:
http://arxiv.org/abs/2106.10976
Autor:
He, Yangkun, Schneider, Sebastian, Helm, Toni, Gayles, Jacob, Wolf, Daniel, Soldatov, Ivan, Borrmann, Horst, Schnelle, Walter, Schaefer, Rudolf, Fecher, Gerhard H., Rellinghaus, Bernd, Felser, Claudia
Publikováno v:
Acta Materialia 226 117619 (2022)
The topological Hall effect (THE), induced by the Berry curvature, which originates from non-zero scalar spin chirality, is an important feature for mesoscopic topological structures, such as skyrmions. However, the THE might also arise from other mi
Externí odkaz:
http://arxiv.org/abs/2011.06340
Autor:
He, Yangkun, Fecher, Gerhard H., Fu, Chenguang, Pan, Yu, Manna, Kaustuv, Kroder, Johannes, Jha, Ajay, Wang, Xiao, Hu, Zhiwei, Agrestini, Stefano, Herrero-Martin, Javier, Valvidares, Manuel, Skourski, Yurii, Schnelle, Walter, Stamenov, Plamen, Borrmann, Horst, Tjeng, Liu Hao, Schaefer, Rudolf, Parkin, S. S. P., Coey, J. M. D., Felser, Claudia
Publikováno v:
Advanced Materials 2020
The development of high-density magnetic recording media is limited by the superparamagnetism in very small ferromagnetic crystals. Hard magnetic materials with strong perpendicular anisotropy offer stability and high recording density. To overcome t
Externí odkaz:
http://arxiv.org/abs/2009.01034
Publikováno v:
Phys. Rev. Materials 5, 054404 (2021)
This work reports on first principles calculations of the electronic and magnetic structure of tetragonal Heusler compounds with the composition Rh$_2$Fe$_{x}$Co$_{1-x}$Sb ($0\leq x\leq1$). It is found that the magnetic moments increase from 2 to 3.4
Externí odkaz:
http://arxiv.org/abs/2009.00920
Autor:
Swekis, Peter, Gayles, Jacob, Kriegner, Dominik, Fecher, Gerhard H., Sun, Yan, Goennenwein, Sebastian T. B., Felser, Claudia, Markou, Anastasios
Publikováno v:
ACS Appl. Electron. Mater. 3, 1323 (2021)
Tetragonal Mn-based Heusler compounds feature rich exchange interactions and exotic topological magnetic textures, such as antiskyrmions, complimented by the chiral-type Hall effects. This makes the material class interesting for device applications.
Externí odkaz:
http://arxiv.org/abs/2007.13412
Autor:
Manna, Kaustuv, Muechler, Lukas, Kao, Ting-Hui, Stinshoff, Rolf, Zhang, Yang, Gooth, Johannes, Kumar, Nitesh, Kreiner, Guido, Koepernik, Klaus, Car, Roberto, Kübler, Jürgen, Fecher, Gerhard H., Shekhar, Chandra, Sun, Yan, Felser, Claudia
Publikováno v:
Phys. Rev. X 8, 041045 (2018)
Since the discovery of the anomalous Hall effect (AHE), the anomalous Hall conductivity (AHC) has been thought to be zero when there is no net magnetization. However, the recently found relation between the intrinsic AHE and the Berry curvature predi
Externí odkaz:
http://arxiv.org/abs/1712.10174
Autor:
He, Yangkun, Schneider, Sebastian, Helm, Toni, Gayles, Jacob, Wolf, Daniel, Soldatov, Ivan, Borrmann, Horst, Schnelle, Walter, Schaefer, Rudolf, Fecher, Gerhard H., Rellinghaus, Bernd, Felser, Claudia
Publikováno v:
In Acta Materialia March 2022 226
Autor:
Stinshoff, Rolf, Wimmer, Sebastian, Ebert, Hubert, Fecher, Gerhard H, Felser, Claudia, Chadov, Stanislav
We present an ab-initio study of the temperature-dependent longitudinal and anomalous Hall resistivities in the compensated collinear ferrimagnet Mn$_{1.5}$V$_{0.5}$FeAl. Its transport properties are calculated using the general fully relativistic Ku
Externí odkaz:
http://arxiv.org/abs/1710.04453
Autor:
Ernst, Benedikt, Sahoo, Roshnee, Sun, Yan, Nayak, Jayita, Muechler, Lukas, Nayak, Ajaya K., Kumar, Nitesh, Markou, Anastasios, Fecher, Gerhard H., Felser, Claudia
Publikováno v:
Phys. Rev. B 100, 054445 (2019)
Various Co2 based Heusler compounds are predicted to be Weyl materials. These systems with broken symmetry possess a large Berry curvature, and introduce exotic transport properties. The present study on epitaxially grown Co2TiSn films is an initial
Externí odkaz:
http://arxiv.org/abs/1710.04393
Autor:
Nayak, Jayita, Kumar, Nitesh, Wu, Shu-Chun, Shekhar, Chandra, Fink, Joerg, Rienks, Emile E. D., Fecher, Gerhard H., Sun, Yan, Felser, Claudia
The topological phases of matter provide the opportunity to observe many exotic properties, like the existence of two dimensional topological surface states in the form of Dirac cone in topological insulators, chiral transport through open Fermi arc
Externí odkaz:
http://arxiv.org/abs/1708.07814