Professor TOMAS JUNGWIRTH's Outputs (10)

Magnetic anisotropy in antiferromagnetic hexagonal MnTe (2017)
Journal Article
Kriegner, D., Reichlova, H., Grenzer, J., Schmidt, W., Ressouche, E., Godinho, J., Wagner, T., Martin, S., Shick, A., Volobuev, V., Springholz, G., Holý, V., Wunderlich, J., Jungwirth, T., & Výborný, K. (2017). Magnetic anisotropy in antiferromagnetic hexagonal MnTe. Physical Review B, 96(21), https://doi.org/10.1103/PhysRevB.96.214418

Antiferromagnetic hexagonal MnTe is a promising material for spintronic devices relying on the control of antiferromagnetic domain orientations. Here we report on neutron diffraction, magnetotransport, and magnetometry experiments on semiconducting e... Read More about Magnetic anisotropy in antiferromagnetic hexagonal MnTe.

Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films (2017)
Journal Article
Wadley, P., Edmonds, K., Shahedkhah, M., Campion, R., Gallagher, B., Železný, J., Kunes, J., Novák, V., Jungwirth, T., Saidl, V., Němec, P., Maccherozzi, F., & Dhesi, S. (in press). Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films. Scientific Reports, 7, Article 11147. https://doi.org/10.1038/s41598-017-11653-8

Using x-ray magnetic circular and linear dichroism techniques, we demonstrate a collinear exchange coupling between an epitaxial antiferromagnet, tetragonal CuMnAs, and an Fe surface layer. A small uncompensated Mn magnetic moment is observed which i... Read More about Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films.

The 2017 Magnetism Roadmap (2017)
Journal Article
Sander, D., Valenzuela, S. O., Makarov, D., Marrows, C. H., Fullerton, E. E., Fischer, P., McCord, J., Vavassori, P., Mangin, S., Pirro, P., Hillebrands, B., Kent, A. D., Jungwirth, T., Gutfleisch, O., Kim, C. G., & Berger, A. (2017). The 2017 Magnetism Roadmap. Journal of Physics D: Applied Physics, 50(36), Article 363001. https://doi.org/10.1088/1361-6463/aa81a1

Building upon the success and relevance of the 2014 Magnetism Roadmap, this 2017 Magnetism Roadmap edition follows a similar general layout, even if its focus is naturally shifted, and a different group of experts and, thus, viewpoints are being coll... Read More about The 2017 Magnetism Roadmap.

Antiferromagnetic CuMnAs multi-level memory cell with microelectronic compatibility (2017)
Journal Article
Olejnik, K., Schuler, V., Marti, X., Novák, V., Kaspar, Z., Wadley, P., Campion, R. P., Edmonds, K. W., Gallagher, B. L., Garces, J., Baumgartner, M., Gambardella, P., & Jungwirth, T. (2017). Antiferromagnetic CuMnAs multi-level memory cell with microelectronic compatibility. Nature Communications, 8, Article 15434. https://doi.org/10.1038/ncomms15434

Antiferromagnets offer a unique combination of properties including the radiation and magnetic field hardness, the absence of stray magnetic fields, and the spin-dynamics frequency scale in terahertz. Recent experiments have demonstrated that relativ... Read More about Antiferromagnetic CuMnAs multi-level memory cell with microelectronic compatibility.

Inertial displacement of a domain wall excited byultra-short circularly polarized laser pulses (2017)
Journal Article
Janda, T., Roy, P., Otxoa, R., Soban, Z., Ramsay, A., Irvine, A., Trojanek, F., Surynek, M., Campion, R., Gallagher, B., Nemec, P., Jungwith, T., & Wunderlich, J. (2017). Inertial displacement of a domain wall excited byultra-short circularly polarized laser pulses. Nature Communications, 8, Article 15226. https://doi.org/10.1038/ncomms15226

Domain wall motion driven by ultra-short laser pulses is a prerequisite for envisaged low-power spintronics combining storage of information in magnetoelectronic devices with high speed and long distance transmission of information encoded in circula... Read More about Inertial displacement of a domain wall excited byultra-short circularly polarized laser pulses.

Electric control of Dirac quasiparticles by spin-orbit torque in an antiferromagnet (2017)
Journal Article
Šmejkal, L., Železný, J., Sinova, J., & Jungwirth, T. (2017). Electric control of Dirac quasiparticles by spin-orbit torque in an antiferromagnet. Physical Review Letters, 118(10), https://doi.org/10.1103/PhysRevLett.118.106402

Spin orbitronics and Dirac quasiparticles are two fields of condensed matter physics initiated independently about a decade ago. Here we predict that Dirac quasiparticles can be controlled by the spin-orbit torque reorientation of the Néel vector in... Read More about Electric control of Dirac quasiparticles by spin-orbit torque in an antiferromagnet.

Concepts of antiferromagnetic spintronics (2017)
Journal Article
Gomonay, O., Jungwirth, T., & Sinova, J. (in press). Concepts of antiferromagnetic spintronics. physica status solidi (RRL) - Rapid Research Letters, 11(4), Article 1700022. https://doi.org/10.1002/pssr.201700022

Antiferromagnetic spintronics is an emerging research field whose focus is on the electrical, optical or other means of control of the antiferromagnetic order parameter and its utility in information technology devices. An example of recently discove... Read More about Concepts of antiferromagnetic spintronics.

Imaging current-induced switching of antiferromagnetic domains in CuMnAs (2017)
Journal Article
Grzybowski, M., Wadley, P., Edmonds, K., Beardsley, R., Hills, V. A., Campion, R., Gallagher, B., Chauhan, J. S., Novák, V., Jungwirth, T., Maccherozzi, F., & Dhesi, S. (2017). Imaging current-induced switching of antiferromagnetic domains in CuMnAs. Physical Review Letters, 118(5), Article 057701. https://doi.org/10.1103/PhysRevLett.118.057701

The magnetic order in antiferromagnetic materials is hard to control with external magnetic fields. Using X-ray Magnetic Linear Dichroism microscopy, we show that staggered effective fields generated by electrical current can induce modification of t... Read More about Imaging current-induced switching of antiferromagnetic domains in CuMnAs.

Optical determination of the Néel vector in a CuMnAs thin-film antiferromagnet (2017)
Journal Article
Saidl, V., Němec, P., Wadley, P., Hills, V., Campion, R. P., Novák, V., Edmonds, K. W., Maccherozzi, F., Dhesi, S. S., Gallagher, B. L., Trojánek, F., Kunes, J., Železný, J., Malý, P., & Jungwirth, T. (2017). Optical determination of the Néel vector in a CuMnAs thin-film antiferromagnet. Nature Photonics, 11(2), 91-96. https://doi.org/10.1038/nphoton.2016.255

Recent breakthroughs in electrical detection and manipulation of antiferromagnets have opened a new avenue in the research of non-volatile spintronic devices.1-10 Antiparallel spin sublattices in antiferromagnets, producing zero dipolar fields, lead... Read More about Optical determination of the Néel vector in a CuMnAs thin-film antiferromagnet.

Spin-orbit torques in locally and globally non-centrosymmetric crystals: antiferromagnets and ferromagnets (2017)
Journal Article
Železný, J., Gao, H., Manchon, A., Freimuth, F., Mokrousov, Y., Zemen, J., Mašek, J., Sinova, J., & Jungwirth, T. (2017). Spin-orbit torques in locally and globally non-centrosymmetric crystals: antiferromagnets and ferromagnets. Physical Review B, 95(1), Article 014403. https://doi.org/10.1103/PhysRevB.95.014403

One of the main obstacles that prevents practical applications of antiferromagnets is the dfficulty of manipulating the magnetic order parameter. Recently, following the theoretical prediction [J. Železný et al., PRL 113, 157201 (2014)], the electric... Read More about Spin-orbit torques in locally and globally non-centrosymmetric crystals: antiferromagnets and ferromagnets.