ePubs
The open archive for STFC research publications
Home
About ePubs
Content Policies
News
Help
Privacy/Cookies
Suggest an Enhancement
Contact ePubs
Full Record Details
Persistent URL
http://purl.org/net/epubs/work/655
Record Status
Checked
Record Id
655
Title
The spectrum of longitudinal spin fluctuations in a ferromagnet including dipolar and Zeeman energies
Contributors
KN Trohidou (Democritos Nucl. Res. Ctr.)
,
SW Lovesey (SERC Rutherford Appleton Lab.)
Abstract
The spectrum of longitudinal spin fluctuations, observed in inelastic neutron scattering experiments, is provided for a Heisenberg model of an ordered ferromagnet, including dipolar forces and a magnetic field. A numelical method is used to obtain results, from an expression delived with linear spin-wave theory, for wave vectors (k) throughout the Brillouin zone as a function of/requency (w), and at various temperatures. Pruticular attention is given to realistic models of EuO and EuS. Results show that dipolar forces diminish the intensity in the longitudinal response function S (k,w) by about a factor of 2, in accord with previous results for the isothermal susceptibility. The evolution of S(k,w) with k displays several pronounced features, and for EuS there is a strong dependence on the direction of k fork near the zone boundary.
Organisation
ISIS
,
ISIS-THEORY
,
SERC
Keywords
Physics
,
ISIS 1993 (RAL Report)
,
ISIS 1993
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
J Phys-Condens Mat
5 (1993): 1109.
doi:10.1088/0953-8984/5/8/012
1993
Report
RAL Technical Reports
RAL-93-004. 1993.
RAL-TR-1993-004.pdf
1993
Showing record 1 of 1
Recent Additions
Browse Organisations
Browse Journals/Series
Login to add & manage publications and access information for OA publishing
Username:
Password:
Useful Links
Chadwick & RAL Libraries
SHERPA FACT
SHERPA RoMEO
SHERPA JULIET
Journal Checker Tool
Google Scholar