Evidence for high-spin-to-low-spin transition under pressure in Fe72Pt28 Invar alloy

Authors
Odin, S Baudelet, F Dartyge, E Itie, JP Polian, A Chervin, JC Kappler, JP Fontaine, A Pizzini, S
Citation
S. Odin et al., Evidence for high-spin-to-low-spin transition under pressure in Fe72Pt28 Invar alloy, PHIL MAG B, 80(2), 2000, pp. 155-163
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICSELECTRONIC OPTICAL AND MAGNETIC PROPERTIES
ISSN journal
13642812 → ACNP
Volume
80
Issue
2
Year of publication
2000
Pages
155 - 163
Database
ISI
SICI code
1364-2812(200002)80:2<155:EFHTUP>2.0.ZU;2-J
Abstract
X-ray magnetic circular dichroism (XMCD) measurements have been performed u nder high pressures and used to study the disordered Fe72Pt28 Invar alloy i n conjunction with X-ray diffraction. The high-spin-to-low-spin state trans ition is observed at 4 GPa by both techniques and is compared with previous work. Furthermore, XMCD shows the complete disappearance of the magnetic m oment at high pressures in this alloy. A hysteresis cycle of the pressure-d ependent magnetic moment is also evidenced.