Asymmetry of electron and hole doping in YMnO3

Bas B van Aken, Jan-Willem Bos, Robert A de Groot, Thomas T M Palstra

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Abstract

We synthesized hexagonal YMnO3 doped with tetravalent Zr ions and studied the electronic and magnetic properties. Zr substitution creates a mixed Mn3+-Mn2+ system, instead of the conventional Mn3+-Mn4+ of colossal magnetoresistance manganites. The YMnO3 system displays a pronounced asymmetry for electron and hole doping. Hole doping results in a conducting state, whereas electron doping retains the insulating state. This asymmetry is a consequence of the crystal field splitting of the Mn ions in trigonal bipyramidal coordination.

Original languageEnglish
Article number125127
Number of pages4
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume63
Issue number12
DOIs
Publication statusPublished - 15 Mar 2001

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