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Saturation of the anomalous Hall effect at high magnetic fields in altermagnetic RuO2
Teresa Tschirner, Philipp Keßler, Ruben Dario Gonzalez Betancourt +13
Observations of the anomalous Hall effect in RuO and MnTe have demonstrated unconventional time-reversal symmetry breaking in the electronic structure of a recently identified…
Terahertz probing of anisotropic conductivity and morphology of CuMnAs epitaxial thin films
Peter Kubaščík, Andrej Farkaš, Kamil Olejník +14
Antiferromagnetic CuMnAs thin films have attracted attention since the discovery of the manipulation of their magnetic structure via electrical, optical, and terahertz pulses of el…
Chiral magnons in altermagnetic RuO2
Libor Šmejkal, Alberto Marmodoro, Kyo-Hoon Ahn +8
Magnons in ferromagnets have one chirality, and typically are in the GHz range and have a quadratic dispersion near the zero wavevector. In contrast, magnons in antiferromagnets ar…
Emerging research landscape of altermagnetism
Libor Šmejkal, Jairo Sinova, Tomas Jungwirth
Magnetism is one of the largest, most fundamental, and technologically most relevant fields of condensed-matter physics. Traditionally, two basic magnetic phases have been consider…
Altermagnetism: spin-momentum locked phase protected by non-relativistic symmetries
Libor Šmejkal, Jairo Sinova, Tomas Jungwirth
The search for novel magnetic quantum phases, phenomena and functional materials has been guided by relativistic magnetic-symmetry groups in coupled spin and real space from the da…
Giant and tunneling magnetoresistance effects from anisotropic and valley-dependent spin-momentum interactions in antiferromagnets
Libor Šmejkal, Anna Birk Hellenes, Rafael González-Hernández +2
Giant or tunneling magnetoresistance are physical phenomena used for reading information in commercial spintronic devices. The effects rely on a conserved spin current passing betw…