Taylor, J. W., Duffy, J. A., Steer, C. S. and Shenton-Taylor, C. (2007) Spin wave dynamics of MnO confined in nanometer pores. Journal of Magnetism and Magnetic Materials, Vol.310 (No.2). pp. 2327-2329. doi:10.1016/j.jmmm.2006.11.067 ISSN 0304-8853.

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Abstract

The spin wave dynamics of MnO confined in a nanoporous matrix has been investigated by inelastic neutron scattering, using the direct geometry time of flight spectrometer MARI as the ISIS spallation source. Despite bulk measurements upon confined MnO indicating a 1K enhancement of T-N, our data show the vertical bar Q vertical bar dependence of the magnetic scattering in the confined system to be centered at around 0.9 angstrom (-1) as opposed to 1.5 angstrom (-1) in the bulk. This is an indication of a change in the length scale for the confined system. Furthermore, a large contribution to the magnetic scattering is observed below 10 meV in the confined system indicative of a range of exchange interactions present in the confined system. (c) 2006 Elsevier B. V. All rights reserved.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Journal of Magnetism and Magnetic Materials
Publisher:	Elsevier Science BV
ISSN:	0304-8853
Official Date:	March 2007
Dates:	Date Event March 2007 Published
Volume:	Vol.310
Number:	No.2
Number of Pages:	3
Page Range:	pp. 2327-2329
DOI:	10.1016/j.jmmm.2006.11.067
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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