Riesige Magnetostriktion im Ferrimagnet SmFe 5 As 3 [* Cross-Reference *]

Version 1.0
Oksana Karychort; Jan Priessnitz; Volodymyr Buturlim; Mitja Krnel; Iñigo Robredo; Nazar Zaremba; Ulrich Burkhardt; Helge Rosner; Andrew N. Fitch; Markus König; Fabrice Wilhelm; Оlga Zhak; Dileep Krishnan; Ivan Soldatov; Rudolf Schäfer; Maia G. Vergniory; Libor Šmejkal; Theo Siegrist; Berit H. Goodge; Krzysztof Gofryk; Yurii Prots; Eteri Svanidze, 2026, "Riesige Magnetostriktion im Ferrimagnet SmFe 5 As 3 [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.MFV9ID, LIST Open Repository, V1
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ZUSAMMENFASSUNG Magnetostriktive Materialien sind nicht nur aus rein wissenschaftlicher Sicht von Interesse, sondern auch im Hinblick auf mögliche Anwendungen, die von Spintronik bis zur Energiegewinnung reichen. Ein neues magnetostriktives Material – SmFe 5 As 3 – zeigt ein komplexes Zusammenspiel zwischen Magnetostriktion, magnetischen Eigenschaften und der Kristallstruktur. Der Grundzustand von SmFe 5 As 3 ist ferrimagnetisch, was durch magnetische Suszeptibilitätsdaten, Bandstrukturrechnungen und XANES‐Messungen belegt wird. Bei = 28 4 K ordnet sich ein Teil des magnetischen Fe‐Untergitters neu an und geht in einen ferromagnetischen Zustand über. Darauf folgt bei = 76 4 K der Übergang in den paramagnetischen Zustand. Die in den magnetischen Messungen beobachteten Effekte werden von strukturellen Phasenübergängen begleitet. Alle drei Phasen – unterhalb von , zwischen und sowie oberhalb von – werden durch denselben strukturellen Motif vom UCr 5 P 3 ‐Typ (monokline Raumgruppe ) beschrieben und unterscheiden sich lediglich im Grad der Verformung der Fe–As Teilstruktur. Das neue Material zeigt eine riesige Magnetostriktion von . Dilatometrische Messungen an einem SmFe 5 As 3 ‐Einkristall weisen auf ein stark anisotropes Verhalten hin, das sowohl negatives, konstantes sowie positives thermoelastisches Verhalten zeigt. (2026-03-30)
***This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.1002/ange.202522578 for the original and latest version of the publication*** (2026-07-01)
Subject Physics
Keyword Ferrimagnetism, Iron alloys, Inorganic compound
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