Nuclear resonant scattering of synchrotron radiation from Dy-161 at 25.61 keV

Authors
Shvyd'ko, YV Gerken, M Franz, H Lucht, M Gerdau, E
Citation
Yv. Shvyd'Ko et al., Nuclear resonant scattering of synchrotron radiation from Dy-161 at 25.61 keV, EUROPH LETT, 56(2), 2001, pp. 309-315
Citations number
22
Categorie Soggetti
Physics
Journal title
EUROPHYSICS LETTERS
ISSN journal
02955075 → ACNP
Volume
56
Issue
2
Year of publication
2001
Pages
309 - 315
Database
ISI
SICI code
0295-5075(200110)56:2<309:NRSOSR>2.0.ZU;2-A
Abstract
Nuclear resonant scattering of synchrotron radiation from the 25.6 keV leve l of Dy-161 is studied with two techniques: nuclear forward scattering (NFS ) and nuclear incoherent scattering (NIS). NFS time spectra of Dy metal are measured at temperatures ranging from 15 K to 80 K. They reveal electron s pin relaxation in ferromagnetic dysprosium with long relaxation times of si milar or equal to 10-30 ns. NIS energy spectra of Dy2O3 at room temperature are measured with meV resolution. Scattering accompanied by phonon excitat ion is observed.