Magnetic Excitations in the Diluted Ferromagnet Ni₂Mn₀.₈V₀.₂ˢⁿ
| dc.contributor.advisor | Stager, C.V. | en_US |
| dc.contributor.author | Locke, Kenneth E. | en_US |
| dc.contributor.department | Physics | en_US |
| dc.date.accessioned | 2014-06-18T16:34:54Z | |
| dc.date.available | 2014-06-18T16:34:54Z | |
| dc.date.created | 2010-03-23 | en_US |
| dc.date.issued | 1981-11 | en_US |
| dc.description.abstract | <p>The magnetic excitation spectrum of the randomly diluted ferromagnet, Ni₂Mn₀.₈V₀.₂Sn, has been measured by neutron inelastic techniques. The frequencies are reduced from those observed for the non-diluted ferro-magnet, Ni₂MnSn, by a factor that depends on wavevector. The shape of the frequency shift is characteristic of an in-band resonance. Computer simulation calculations have been performed for large finite arrays (~15,000 spins) including up to third neighbour interactions. The predicted frequencies agree with experiment. The calculations show a resonant effect however it is not as pronounced as the observed effect.</p> | en_US |
| dc.description.degree | Doctor of Philosophy (PhD) | en_US |
| dc.identifier.other | opendissertations/1634 | en_US |
| dc.identifier.other | 2059 | en_US |
| dc.identifier.other | 1240850 | en_US |
| dc.identifier.uri | http://hdl.handle.net/11375/6315 | |
| dc.subject | Physics | en_US |
| dc.subject | Physics | en_US |
| dc.title | Magnetic Excitations in the Diluted Ferromagnet Ni₂Mn₀.₈V₀.₂ˢⁿ | en_US |
| dc.type | thesis | en_US |
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