Antiferromagnetic resonance in α − MnTe
Source abstract
Abstract
Antiferromagnetic resonance in a bulk $α$-MnTe crystal is investigated using both frequency-domain and time-domain THz spectroscopy techniques. At low temperatures, an excitation at the photon energy of $(3.5\pm 0.1)$~meV is observed and identified as a magnon mode through its distinctive dependence on temperature and magnetic field. This behavior is reproduced using a simplified model for antiferromagnetic resonance in an easy-plane antiferromagnet. The results of our experiments, when compared to exchange constants established in the literature, allow us to extract the out-of-plane component of the single-ion magnetic anisotropy reaching $(40\pm10)$~$μ$eV.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Heusler alloys: electronic and magnetic properties · Rare-earth and actinide compounds · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
LNCMI
Charles University
Institute of Physics, Academy of Science of the Czech Republic
Institute of High Pressure Physics
University of Warsaw
Institute of Physics, Polish Academy of Sciences
Funding
Grantová Agentura České Republiky · Ministerstvo Školství, Mládeže a Tělovýchovy · College of Natural Resources and Sciences, Humboldt State University · Univerzita Karlova v Praze · Narodowe Centrum Nauki
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