PRESSURE DERIVATIVES OF T(C) IN AMORPHOUS (FE100-XMNX)75P15C10 ALLOYS

Authors
MEDVEDEVA IV BERSENEV YS GANIN AA BARNER K SCHUNEMANN JW HEINEMANN K
Citation
Iv. Medvedeva et al., PRESSURE DERIVATIVES OF T(C) IN AMORPHOUS (FE100-XMNX)75P15C10 ALLOYS, Journal of magnetism and magnetic materials, 124(3), 1993, pp. 293-297
Citations number
20
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
124
Issue
3
Year of publication
1993
Pages
293 - 297
Database
ISI
SICI code
0304-8853(1993)124:3<293:PDOTIA>2.0.ZU;2-#
Abstract
The effect of hydrostatic pressure on the temperature dependence of th e permeability of amorphous (Fe100-xMnx)75P15C10 alloys with x = 0, 20 , 30 was measured up to 15 kbar. The Curie temperatures T(C) decrease under preSSure at rates of dT(C)/dP = - 2.3, - 2.2, - 1.9 K/kbar for x = 0, 20, and 30 at% Mn, respectively. The results are discussed in th e framework of a cation mixing model. It is supposed that the exchange energy T(MnMn) increases and T(FeMn) decreases under pressure, thus r esulting in the weak dependence of dT(C)/dP on manganese concentration .