K
Karel Výborný
Researcher at Academy of Sciences of the Czech Republic
Publications - 58
Citations - 2306
Karel Výborný is an academic researcher from Academy of Sciences of the Czech Republic. The author has contributed to research in topics: Magnetoresistance & Quantum Hall effect. The author has an hindex of 19, co-authored 54 publications receiving 1868 citations. Previous affiliations of Karel Výborný include University at Buffalo & University of Hamburg.
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Journal ArticleDOI
Relativistic Néel-order fields induced by electrical current in antiferromagnets
J. Železný,Huawei Gao,Karel Výborný,Jan Zemen,J. Mašek,Aurelien Manchon,Joerg Wunderlich,Jairo Sinova,Tomas Jungwirth +8 more
TL;DR: It is predicted that a lateral electrical current in antiferromagnets can induce nonequilibrium Néel-order fields, i.e., fields whose sign alternates between the spin sublattices, which can trigger ultrafast spin-axis reorientation.
Journal ArticleDOI
An antidamping spin–orbit torque originating from the Berry curvature
Hidekazu Kurebayashi,Jairo Sinova,D. Fang,Andrew C. Irvine,T. D. Skinner,Joerg Wunderlich,Vít Novák,R. P. Campion,B. L. Gallagher,E. K. Vehstedt,Liviu P. Zârbo,Karel Výborný,Andrew Ferguson,Tomas Jungwirth +13 more
TL;DR: The observation of an antidamping spin-orbit torque that stems from the Berry curvature, in analogy to the origin of the intrinsic spin Hall effect is reported, which is expected to be of comparable strength to the spin-Hall-effect-driven antidamping torque in ferromagnets interfaced with paramagnets with strong intrinsicspin Hall effect.
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Spin–orbit-driven ferromagnetic resonance
D. Fang,Hidekazu Kurebayashi,Joerg Wunderlich,Karel Výborný,Liviu P. Zârbo,R. P. Campion,Arianna Casiraghi,B. L. Gallagher,Tomas Jungwirth,Andrew Ferguson +9 more
TL;DR: A form of ferromagnetic resonance is introduced in which an electric current oscillating at microwave frequencies is used to create an effective magnetic field in the magnetic material being probed, which makes it possible to characterize individual nanoscale samples with uniform magnetization profiles.
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Multiple-stable anisotropic magnetoresistance memory in antiferromagnetic MnTe
Dominik Kriegner,Karel Výborný,K. Olejník,Helena Reichlova,Vít Novák,Xavi Marti,Jaume Gazquez,V. Saidl,Petr Němec,Valentine V. Volobuev,Valentine V. Volobuev,Gunther Springholz,Václav Holý,Tomas Jungwirth,Tomas Jungwirth +14 more
TL;DR: A multiple-stable memory device in epitaxial MnTe, an antiferromagnetic counterpart of common II–VI semiconductors, is demonstrated, demonstrating the robustness against strong magnetic field perturbations combined with the multiple stability of the magnetic memory states.
Journal ArticleDOI
Curie point singularity in the temperature derivative of resistivity in (Ga,Mn)As.
Vít Novák,K. Olejník,Joerg Wunderlich,M. Cukr,Karel Výborný,A. W. Rushforth,K. W. Edmonds,R. P. Campion,B. L. Gallagher,Jairo Sinova,Tomas Jungwirth +10 more
TL;DR: A singularity in the temperature derivative drho/dT of resistivity at the Curie point of high-quality (Ga,Mn)As ferromagnetic semiconductors with Tc's ranging from approximately 80 to 185 K is observed.