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Emerging Research Landscape of Altermagnetism (2022)
Journal Article
Šmejkal, L., Sinova, J., & Jungwirth, T. (2022). Emerging Research Landscape of Altermagnetism. Physical Review X, 12(4), Article 040501. https://doi.org/10.1103/physrevx.12.040501

Magnetism is one of the largest, most fundamental, and technologically most relevant fields of condensed-matter physics. Traditionally, two basic magnetic phases have been distinguished ferromagnetism and antiferromagnetism. The spin polarization in... Read More about Emerging Research Landscape of Altermagnetism.

Beyond Conventional Ferromagnetism and Antiferromagnetism: A Phase with Nonrelativistic Spin and Crystal Rotation Symmetry (2022)
Journal Article
Šmejkal, L., Sinova, J., & Jungwirth, T. (2022). Beyond Conventional Ferromagnetism and Antiferromagnetism: A Phase with Nonrelativistic Spin and Crystal Rotation Symmetry. Physical Review X, 12(3), Article 031042. https://doi.org/10.1103/PhysRevX.12.031042

Recent series of theoretical and experimental reports have driven attention to time-reversal symmetry-breaking spintronic and spin-splitting phenomena in materials with collinear-compensated magnetic order incompatible with conventional ferromagnetis... Read More about Beyond Conventional Ferromagnetism and Antiferromagnetism: A Phase with Nonrelativistic Spin and Crystal Rotation Symmetry.

Anomalous Hall antiferromagnets (2022)
Journal Article
Šmejkal, L., MacDonald, A. H., Sinova, J., Nakatsuji, S., & Jungwirth, T. (2022). Anomalous Hall antiferromagnets. Nature Reviews Materials, https://doi.org/10.1038/s41578-022-00430-3

The Hall effect, in which a current flows perpendicular to an electrical bias, has been prominent in the history of condensed matter physics. Appearing variously in classical, relativistic and quantum guises, the Hall effect has — among other roles —... Read More about Anomalous Hall antiferromagnets.

Atomically sharp domain walls in an antiferromagnet (2022)
Journal Article
Krizek, F., Reimers, S., Kašpar, Z., Marmodoro, A., Michalička, J., Man, O., …Jungwirth, T. (2022). Atomically sharp domain walls in an antiferromagnet. Science Advances, 8(13), https://doi.org/10.1126/sciadv.abn3535

The interest in understanding scaling limits of magnetic textures such as domain walls spans the entire field of magnetism from its physical fundamentals to applications in information technologies. Here, we explore antiferromagnetic CuMnAs in which... Read More about Atomically sharp domain walls in an antiferromagnet.

Giant and Tunneling Magnetoresistance in Unconventional Collinear Antiferromagnets with Nonrelativistic Spin-Momentum Coupling (2022)
Journal Article
Šmejkal, L., Hellenes, A. B., González-Hernández, R., Sinova, J., & Jungwirth, T. (2022). Giant and Tunneling Magnetoresistance in Unconventional Collinear Antiferromagnets with Nonrelativistic Spin-Momentum Coupling. Physical Review X, 12(1), Article 011028. https://doi.org/10.1103/PhysRevX.12.011028

Giant and tunneling magnetoresistance are physical phenomena used for reading information in commercial spintronic devices. The effects rely on a conserved spin current passing between a reference and a sensing ferromagnetic electrode in a multilayer... Read More about Giant and Tunneling Magnetoresistance in Unconventional Collinear Antiferromagnets with Nonrelativistic Spin-Momentum Coupling.

Defect-driven antiferromagnetic domain walls in CuMnAs films (2022)
Journal Article
Reimers, S., Kriegner, D., Gomonay, O., Carbone, D., Krizek, F., Novák, V., …Edmonds, K. W. (2022). Defect-driven antiferromagnetic domain walls in CuMnAs films. Nature Communications, 13(1), Article 724. https://doi.org/10.1038/s41467-022-28311-x

Efficient manipulation of antiferromagnetic (AF) domains and domain walls has opened up new avenues of research towards ultrafast, high-density spintronic devices. AF domain structures are known to be sensitive to magnetoelastic effects, but the micr... Read More about Defect-driven antiferromagnetic domain walls in CuMnAs films.

Optically Gated Terahertz-Field-Driven Switching of Antiferromagnetic CuMnAs (2021)
Journal Article
Heitz, J. J., Nádvorník, L., Balos, V., Behovits, Y., Chekhov, A. L., Seifert, T. S., …Kampfrath, T. (2021). Optically Gated Terahertz-Field-Driven Switching of Antiferromagnetic CuMnAs. Physical Review Applied, 16(6), Article 064047. https://doi.org/10.1103/PhysRevApplied.16.064047

We show scalable and complete suppression of the recently reported terahertz-pulse-induced switching between different resistance states of antiferromagnetic CuMnAs thin films by ultrafast gating. The gating functionality is achieved by an optically... Read More about Optically Gated Terahertz-Field-Driven Switching of Antiferromagnetic CuMnAs.

Different types of spin currents in the comprehensive materials database of nonmagnetic spin Hall effect (2021)
Journal Article
Zhang, Y., Xu, Q., Koepernik, K., Rezaev, R., Janson, O., Železný, J., …Sun, Y. (2021). Different types of spin currents in the comprehensive materials database of nonmagnetic spin Hall effect. npj Computational Materials, 7(1), Article 167. https://doi.org/10.1038/s41524-021-00635-0

Spin Hall effect (SHE) has its special position in spintronics. To gain new insight into SHE and to identify materials with substantial spin Hall conductivity (SHC), we performed high-precision high-throughput ab initio calculations of the intrinsic... Read More about Different types of spin currents in the comprehensive materials database of nonmagnetic spin Hall effect.

Unidirectional magnetoresistance and spin-orbit torque in NiMnSb (2021)
Journal Article
Železný, J., Fang, Z., Olejník, K., Patchett, J., Gerhard, F., Gould, C., …Ciccarelli, C. (2021). Unidirectional magnetoresistance and spin-orbit torque in NiMnSb. Physical Review B, 104(5), 1-13. https://doi.org/10.1103/PhysRevB.104.054429

Spin-dependent transport phenomena due to relativistic spin-orbit coupling and broken space-inversion symmetry are often difficult to interpret microscopically, in particular when occurring at surfaces or interfaces. Here we present a theoretical and... Read More about Unidirectional magnetoresistance and spin-orbit torque in NiMnSb.