Low Magnetic Damping of Ferrimagnetic GdFeCo Alloys

Cited 1 time in webofscience Cited 0 time in scopus
  • Hit : 84
  • Download : 0
We investigate the Gilbert damping parameter alpha for rare earth (RE)-transition metal (TM) ferrimagnets over a wide temperature range. Extracted from the field-driven magnetic domain-wall mobility, alpha was as low as the order of 10(-3) and was almost constant across the angular momentum compensation temperature T-A, starkly contrasting previous predictions that alpha( )should diverge at T-A due to a vanishing total angular momentum. Thus, magnetic damping of RE-TM ferrimagnets is not related to the total angular momentum but is dominated by electron scattering at the Fermi level where the TM has a dominant damping role. This low value of the Gilbert damping parameter suggests that ferrimagnets can serve as versatile platforms for low-dissipation high-speed magnetic devices.
Publisher
AMER PHYSICAL SOC
Issue Date
2019-03
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW LETTERS, v.122, no.12, pp.127203

ISSN
0031-9007
DOI
10.1103/PhysRevLett.122.127203
URI
http://hdl.handle.net/10203/260994
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 1 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0