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RESEARCH PRODUCT

Inelastic neutron scattering measurements on Nd2Fe14B and Y2Fe14B single crystals

M. SteinerH.m. MayerP.a. LindgårdR. VerhoefKurt Nørgaard ClausenS. HockH. WeinfurterN. StüβerB. Dorner

subject

Resonant inelastic X-ray scatteringPhysicsQuasielastic scatteringCondensed matter physicsMagnonDynamic structure factorQuasielastic neutron scatteringInelastic scatteringCondensed Matter PhysicsSmall-angle neutron scatteringInelastic neutron scatteringElectronic Optical and Magnetic Materials

description

Abstract Inelastic neutron scattering measurements have been carried out on Nd 2 Fe 14 B and Y 2 Fe 14 B single crystals. Temperature dependent acoustic magnon dispersion curves have been found along the high-symmetry directions [0,0,1] and [1,0,0] with a gap at (0,0,2). Soft mode behaviour at spin wave vector q = 0 was observed for Nd 2 Fe 14 B near the spin reorientation temperature. The inelastic scattering intensity decreases steeply for larger q . Therefore, the dispersion curves could be measured until the middle of the Brillouin zone only. The experimental results are discussed in the frame of a classical spin wave model.

yearjournalcountryeditionlanguage
1992-02-01Journal of Magnetism and Magnetic Materials
https://doi.org/10.1016/0304-8853(92)90590-k