HYPERFINE FIELD AND REENTRANT SPIN-GLASS BEHAVIOR IN AMORPHOUS LU-FE ALLOYS

Authors
KOMATSU H CHIANG TH KATAOKA N FUKAMICHI K GOTO T MORIMOTO S ITO A
Citation
H. Komatsu et al., HYPERFINE FIELD AND REENTRANT SPIN-GLASS BEHAVIOR IN AMORPHOUS LU-FE ALLOYS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 76(1-4), 1993, pp. 91-92
Citations number
7
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
76
Issue
1-4
Year of publication
1993
Pages
91 - 92
Database
ISI
SICI code
0168-583X(1993)76:1-4<91:HFARSB>2.0.ZU;2-Q
Abstract
Temperature dependence of the differential susceptibility and of Mossb auer spectra has been investigated for high Fe concentrated amorphous Lu-Fe alloys. Amorphous LuxFe100-x (x = 10.5, 15, 20.7) alloys show cu sps at the Curie temperature T(c) and the spin freezing temperature T( f) and a broad peak at the spin-canting temperature T(g). The average hyperfine field H(hf)BAR of the amorphous Lu20.7Fe79.3 alloy was found to increase with decreasing temperature below T(c) = 180 K. An additi onal increase in H(hf)BAR was observed below the spin-canting temperat ure T(g) = 60 K, being consistent with the results of the differential susceptibility measurements. The Mossbauer spectra were analyzed by b oth conventional and modified Hess-Rubartsch methods. The results obta ined by the latter for the amorphous Lu20.7Fe79.3 alloy show no anti-f erromagnetic component in the hyperfine fields.