Magnetization and resistivity in chromium doped manganites

O Cabeza, Martin Long, C Severac, MA Bari, Christopher Muirhead, MG Francesconi, Colin Greaves

Research output: Contribution to journalArticle

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We report measurements of the magnetic and electrical properties of sintered manganites of the form La0.7Ca0.3CrxMn(1-x)O-3. We find that the peak in the conductivity moves rapidly to lower temperatures as the chromium content is increased and is completely absent for x > 0.2. The Curie temperature, as determined by magnetization measurements, is much less strongly suppressed, disappearing at x similar to 0.7. We interpret this behaviour in terms of the very different effects of the chromium in lifting spin and orbital degeneracy.
Original languageEnglish
Pages (from-to)2569-2578
Number of pages10
JournalJournal of Physics: Condensed Matter
Issue number12
Publication statusPublished - 29 Mar 1999


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