ENHANCED PARAMAGNETIC THERMAL-EXPANSION OF THE INTERMETALLIC COMPOUNDS Y-6(MN1-XFEX)(23)

Authors
DUBENKO IS GRANOVSKIY SA GRATZ E LEVITIN RZ LINDBAUM A MARKOSYAN AS
Citation
Is. Dubenko et al., ENHANCED PARAMAGNETIC THERMAL-EXPANSION OF THE INTERMETALLIC COMPOUNDS Y-6(MN1-XFEX)(23), Journal of magnetism and magnetic materials, 158, 1996, pp. 629-630
Citations number
8
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
158
Year of publication
1996
Pages
629 - 630
Database
ISI
SICI code
0304-8853(1996)158:<629:EPTOTI>2.0.ZU;2-I
Abstract
Thermal expansion measurements of the Y-6(Mn1-xFex)(23) compounds were carried out in the wide temperature region from 4 up to 900 K. In the paramagnetic range a considerable enhancement of the thermal expansio n coefficient alpha has been found for the Mn-rich compounds. In Y6Mn2 3 alpha attains 40 x 10(-6) K-1 and decreases nonlinearly towards 20 x 10(-6) K-1 for Y6Fe23. It is assumed that this strongly enhanced valu e of alpha in the Mn-rich compounds is caused by a large spin fluctuat ion contribution to the total thermal expansion.