التفاصيل البيبلوغرافية
| العنوان: |
Evidence of pseudogravitational distortions of the Fermi surface geometry in the antiferromagnetic metal FeRh. |
| المؤلفون: |
Sklenar, Joseph, Shim, Soho, Saglam, Hilal, Oh, Junseok, Vergniory, M. G., Hoffmann, Axel, Bradlyn, Barry, Mason, Nadya, Gilbert, Matthew J. |
| المصدر: |
Communications Physics; 9/6/2023, Vol. 6 Issue 1, p1-10, 10p |
| مصطلحات موضوعية: |
FERMI surfaces, CONDENSED matter physics, GEOMETRIC surfaces, SURFACE geometry, SPIN-orbit interactions, ENHANCED magnetoresistance, SEMIMETALS |
| مستخلص: |
The confluence between high-energy physics and condensed matter has produced groundbreaking results via unexpected connections between the two traditionally disparate areas. In this work, we elucidate additional connectivity between high-energy and condensed matter physics by examining the interplay between spin-orbit interactions and local symmetry-breaking magnetic order in the magnetotransport of thin-film magnetic semimetal FeRh. We show that the change in sign of the normalized longitudinal magnetoresistance observed as a function of increasing in-plane magnetic field results from changes in the Fermi surface morphology. We demonstrate that the geometric distortions in the Fermi surface morphology are more clearly understood via the presence of pseudogravitational fields in the low-energy theory. The pseudogravitational connection provides additional insights into the origins of a ubiquitous phenomenon observed in many common magnetic materials and points to an alternative methodology for understanding phenomena in locally-ordered materials with strong spin-orbit interactions. There are areas where high-energy and condensed-matter physics can successfully overlap a prominent example being topological matter and the role of supersymmetry. Here, via anisotropic magnetoresistance, the authors investigate distortions in the Fermi surface geometry of FeRh films and provide a theoretical interpretation that considers the results within the framework of a pseudogravitational fields. [ABSTRACT FROM AUTHOR] |
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