Relation between giant volume magnetostriction and colossal magnetoresistance near the Curie temperature of Sm0.55Sr0.45MnO3

Authors
Abramovich, AI Koroleva, LI Michurin, AV Gorbenko, OY Kaul', AR
Citation
Ai. Abramovich et al., Relation between giant volume magnetostriction and colossal magnetoresistance near the Curie temperature of Sm0.55Sr0.45MnO3, PHYS SOL ST, 42(8), 2000, pp. 1494-1498
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
42
Issue
8
Year of publication
2000
Pages
1494 - 1498
Database
ISI
SICI code
1063-7834(200008)42:8<1494:RBGVMA>2.0.ZU;2-J
Abstract
The magnetic, transport, and elastic properties of Sm0.55Sr0.45MnO3 have be en established to be. interrelated. At the Curie point, one observes a larg e volume compression Delta V/V approximate to 0.1%, a sharp minimum in the temperature dependence of negative volume magnetostriction omega(T), and a maximum in the temperature dependence of the electrical resistivity. Giant negative volume magnetostriction omega = -5 x 10(-4) has been found in a ma gnetic field H = 0.9 T, which is accompanied by a colossal negative magneto resistance of 44% in the same field. The results obtained are discussed in terms of a model of electronic phase separation. (C) 2000 MAIK "Nauka/Inter periodica".