Magnetic order multilayering in FeRh thin films by He-Ion irradiation

Autor: S. P. Bennett, A. Herklotz, C. D. Cress, A. Ievlev, C. M. Rouleau, I. I. Mazin, V. Lauter
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Materials Research Letters, Vol 6, Iss 1, Pp 106-112 (2018)
Druh dokumentu: article
ISSN: 2166-3831
21663831
DOI: 10.1080/21663831.2017.1402098
Popis: The heterointerfacing of different materials with competing magnetic orders forms the basis for today’s spintronic devices, however materials compatibility has remained a major limitation to the conception of new multilayered systems. Here, we uncover a multilayer of competing magnetic orders within a single layer of FeRh after low-energy He-ion irradiation: metamagnetic, ferromagnetic, and spin glass. Polarized neutron reflectometry, irradiation modeling, and density functional theory calculations reveal a direct correlation between the disorder concentration, the depth-dependent magnetic ordering, and the onset of the metamagnetic transition. Such a heterostructure opens the door to new paradigms in antiferromagnetic electronics and ultra-low-power magnetization controllability.
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