TUNABLE MAGNETOCALORIC EFFECT IN CERAMIC PEROVSKITES

Citation
X. Bohigas et al., TUNABLE MAGNETOCALORIC EFFECT IN CERAMIC PEROVSKITES, Applied physics letters, 73(3), 1998, pp. 390-392
Citations number
11
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics, Applied
Journal title
ISSN journal
0003-6951
Volume
73
Issue
3
Year of publication
1998
Pages
390 - 392
Database
ISI
SICI code
0003-6951(1998)73:3<390:TMEICP>2.0.ZU;2-F
Abstract
A large entropy variation (magnetocaloric effect) has been discovered in ceramic perovskites with the formulas La0.65Ca0.35Ti1-xMnxO3-z and La0.5+x+yLi0.5-3yTi1-3xMn3xO3-z. Both Curie temperature and entropy ch ange were studied from 4.2 to 400 K for different stoichiometric compo sitions and applied magnetic fields. Our conclusion is that these mate rials are excellent candidates for working materials in magnetic refri geration and liquefaction devices in a wide temperature range. (C) 199 8 American Institute of Physics.