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High energy excitations measured by neutron spectroscopy in FePS3
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Rule, K. C., Wildes, Andrew R., Bewley, R. I., Visser, D. and Hicks, T. J. (2009) High energy excitations measured by neutron spectroscopy in FePS3. Journal of Physics: Condensed Matter, Vol.21 (No.12). Article no. 124214. doi:10.1088/0953-8984/21/12/124214 ISSN 0953-8984.
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Official URL: http://dx.doi.org/10.1088/0953-8984/21/12/124214
Abstract
The quasi-two-dimensional antiferromagnet FePS3 has been investigated using inelastic neutron spectroscopy with the time-of-flight spectrometer HET at the ISIS spallation neutron source. In the paramagnetic regime, two clearly resolved, high energy excitations were observed in the low scattering angle detector banks at 195(5) meV and 430(10) meV. The absence of these transitions from the high angle detector banks indicates that they are likely to be due to the crystal fields and magnetic in origin. The two transitions most probably represent electronic transitions in the Fe2+ ion among the low lying crystal field and spin-orbit split levels raised from the ground state. It has not yet been determined why the energies are greater than those observed in a comparable Raman experiment.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Journal of Physics: Condensed Matter | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0953-8984 | ||||
Official Date: | 25 March 2009 | ||||
Dates: |
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Volume: | Vol.21 | ||||
Number: | No.12 | ||||
Number of Pages: | 5 | ||||
Page Range: | Article no. 124214 | ||||
DOI: | 10.1088/0953-8984/21/12/124214 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Data sourced from Thomson Reuters' Web of Knowledge
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