AC susceptibility in Y1-xTbxCo2 compounds

Authors
Pasquevich, A. F.; Fernández van Raap, Marcela Beatriz; Forker, M.; De La Presa, P.
Publication Year
2004
Language
English
Format
article
Status
Published version
Description
AC susceptibility measurements, as a function of temperature and frequency, have been carried out in Y1-xTbxCo2 (0.1 ≤ x ≤ 0.9) compounds to investigate the magnetic phase transition. It is known that YCo2 exhibits very strongly enhanced Pauli paramagnetism, while TbCo2 orders magnetically with a Co moment induced by the Tb molecular field. The phase transition of TbCo2 at 231 K is a second-order phase transition. We found that in Y1-xTb xCo2 the transition changes from first- to second-order as x increases. The increase in the order temperature with Tb concentration is observed and the type of the phase transition is analyzed in the framework of the Inoue-Shimizu model. © 2004 Elsevier B.V. All rights reserved.
Fil: Pasquevich, A. F.. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
Fil: Fernández van Raap, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
Fil: Forker, M.. Helmholtz Institut für Stralhen und Kernphysik; Alemania
Fil: De La Presa, P.. Helmholtz Institut für Stralhen und Kernphysik; Alemania
Subject
AC SUSCEPTIBILITY
MAGNETIC PHASE TRANSITIONS
RCO2
Astronomía
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/72214