Le, M.D.;
McEwen, K.A.;
Park, J.-G.;
Lee, S.;
Iga, F.;
Rule, K.C.;
(2008)
Magnetic excitations in the ordered phases of praseodymium hexaboride.
Journal of Physics Condensed Matter
, 20
(10)
p. 104231.
10.1088/0953-8984/20/10/104231.
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Abstract
We have made the first inelastic neutron scattering measurements on single crystal PrB6, studying the magnetic excitations in the ordered phases. The lowest energy mode has a minimum energy of ≈1.0 meV at the magnetic zone centre, with a significant dispersion along the [001] direction, but very little dispersion along [110]. Interactions out to fourth nearest neighbours are required to explain the [001] dispersion. Measurements of the temperature dependence of the excitations show a strong softening and broadening of the lowest energy mode at the magnetic zone centre between 2 K (commensurate phase) and 5 K (incommensurate phase).
| Type: | Article |
|---|---|
| Title: | Magnetic excitations in the ordered phases of praseodymium hexaboride |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/0953-8984/20/10/104231 |
| Publisher version: | http://dx.doi.org/10.1088/0953-8984/20/10/104231 |
| Language: | English |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/8233 |
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