Magnetism and crystal-field properties of DyRu2Si2from161Dy Mossbauer spectroscopy
- 10 July 1989
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 1 (27) , 4415-4423
- https://doi.org/10.1088/0953-8984/1/27/014
Abstract
161Dy Mossbauer measurements on DyRu2Si2 are reported. The occurrence of a single magnetic site at low temperatures suggests that the modulated spin structure deduced from neutron data should be squared. The saturation hyperfine parameters reveal a fairly pure mod +or-15/2 ) ground state, i.e., a Dy moment of 10 mu B. The unusual temperature dependence of the hyperfine field and quadrupole interaction found in the paramagnetic region is explained in the framework of a relaxation model implying excited crystal-field states. The second- (B20) and fourth-order (B40) crystal-field parameters are estimated to amount to -4.94 K and 0.0050 K, respectively.Keywords
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