Export to Refworks Export to EndNote Email
Report an Issue

Observation of Coherent Helimagnons and Gilbert Damping in an Itinerant Magnet [electronic resource].

Published:
Berkeley, Calif. : Lawrence Berkeley National Laboratory, 2012.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
4 : digital, PDF file
Additional Creators:
Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It

Finding items...

Restrictions on Access:
Free-to-read Unrestricted online access
Summary:
We study the magnetic excitations of itinerant helimagnets by applying time-resolved optical spectroscopy to Fe0:8Co0:2Si. Optically excited oscillations of the magnetization in the helical state are found to disperse to lower frequency as the applied magnetic field is increased; the fingerprint of collective modes unique to helimagnets, known as helimagnons. The use of time-resolved spectroscopy allows us to address the fundamental magnetic relaxation processes by directly measuring the Gilbert damping, revealing the versatility of spin dynamics in chiral magnets.
Report Numbers:
E 1.99:lbnl-6643e
lbnl-6643e
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
08/31/2012.
"lbnl-6643e"
Physical Review Letters 109 FT
Ramesh, R.; Schoenlein, R.W.; Bauer, A.; Pfleiderer, C.; Parameswaran, S. A.; Koralek, J. D.; Orenstein, J.; Meier, D.; Hinton, J. P.; Vishwanath, A.
Materials Sciences Division
Funding Information:
DE-AC02-05CH11231
View MARC record | catkey: 14061087