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TT: Fachverband Tiefe Temperaturen
TT 80: Correlated Electrons: Poster
TT 80.4: Poster
Thursday, March 21, 2024, 15:00–18:00, Poster E
Magnetism, heat capacity and electronic structure of EuCd2P2 in view of its colossal magnetoresistance — •Sarah Krebber1, Dmitry Usachov2, Charu Garg1, Marvin Kopp1, Jens Müller1, Denis Vyalikh3, Cornelius Krellner1, and Kristin Kliemt1 — 1Physikalisches Institut, Goethe Universität Frankfurt, Germany — 2Donostia International Physics Center (DIPC), 20018 Donostia-San Sebastian, Spain — 3Iberasque, Basque Foundation for Science, Bilbao, Spain
Materials showing a colossal magnetoresistance (CMR) effect have been studied extensively over the last decades as they potentially form the materials basis for future applications. Recently, Eu-based 122 compounds in the trigonal CaAl2Si2 structure type have been shown to be promising candidates to study this CMR effect in antiferromagnetically ordered materials, where the underlying mechanism is still under investigation [1-3]. Recent studies propose the formation of ferromagnetic clusters to be the cause for these unusal transport properties in EuCd2P2 [2]. Here we present a detailed study of the magnetic properties of EuCd2P2 in connction with its heat capacity and electrical resistivity particulary in the view of its colossal magnetoresistance. Furthermore, we report on its electronic structure by ARPES measurements accompanied by DFT calculations.
[1] Z.C.Wang et al., Adv. Mater. 33, 2005755 (2021).
[2] V.Sunko et al., Phys. Rev. B 107, 144404 (2023).
[3] S.Krebber et al., Phys. Rev. B 108, 045116 (2023).
Keywords: CMR; Magnetism; DFT; ARPES