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+yLi0.5-3yTi1-3xMn3xO 3-z. Both Curie temperature and entropy change were studied from 4.2 to 400 K for different stoichiometric compositions and applied magnetic fields. Our conclusion is that these materials are excellent candidates for working materials in magnetic refrigeration and liquefaction devices in a wide temperature range.
Original language | English (US) |
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Pages (from-to) | 390-392 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 73 |
Issue number | 3 |
DOIs | |
State | Published - 1998 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)