Field-induced valence transition under high pressure in EuNi2(Ge1-xSix)(2)

Authors
Mitsuda, A Goto, T Wada, H Shiga, M
Citation
A. Mitsuda et al., Field-induced valence transition under high pressure in EuNi2(Ge1-xSix)(2), J MAGN MAGN, 226, 2001, pp. 167-169
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
226
Year of publication
2001
Part
1
Pages
167 - 169
Database
ISI
SICI code
0304-8853(200105)226:<167:FVTUHP>2.0.ZU;2-8
Abstract
In order to investigate the nature of the trivalent state induced by pressu re, we have examined the magnetization of EuNi2(Ge1-xSix)(2) with x = 0.15 under high pressure up to 1.2 GPa in pulsed magnetic fields up to 40T at 4. 2 K. The compound shows a field-induced valence transition at 0.2-0.5 GPa. This valence transition is of first order, accompanied with a large hystere sis. A proportional relation between the transition field and temperature i s observed. (C) 2001 Elsevier Science B.V. All rights reserved.