NDLI: Spin relaxation signature of colossal magnetic anisotropy in platinum atomic chains

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Spin relaxation signature of colossal magnetic anisotropy in platinum atomic chains

Content Provider	Semantic Scholar
Author	Bergman, Anders S. F. Hellsvik, Johan Bessarab, Pavel F. Delin, Anna
Copyright Year	2016
Abstract	Recent experimental data demonstrate emerging magnetic order in platinum atomically thin nanowires. Furthermore, an unusual form of magnetic anisotropy - colossal magnetic anisotropy (CMA) - was earlier predicted to exist in atomically thin platinum nanowires. Using spin dynamics simulations based on first-principles calculations, we here explore the spin dynamics of atomically thin platinum wires to reveal the spin relaxation signature of colossal magnetic anisotropy, comparing it with other types of anisotropy such as uniaxial magnetic anisotropy (UMA). We find that the CMA alters the spin relaxation process distinctly and, most importantly, causes a large speed-up of the magnetic relaxation compared to uniaxial magnetic anisotropy. The magnetic behavior of the nanowire exhibiting CMA should be possible to identify experimentally at the nanosecond time scale for temperatures below 5 K. This time-scale is accessible in e.g., soft x-ray free electron laser experiments.
File Format	PDF HTM / HTML
arXiv	1604.00626
PubMed reference number	27841287v1
Alternate Webpage(s)	https://doi.org/10.1038/srep36872
DOI	10.1038/srep36872
Journal	Scientific reports
Volume Number	6
Language	English
Access Restriction	Open
Subject Keyword	Anisotropy Exhibits as Topic Nanowires Platinum Views:Finding:Point in time:To be specified in another part of the message:Narrative:XR chaperone-mediated autophagy nanosecond
Content Type	Text
Resource Type	Article

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