Asymmetry of electron and hole doping in YMnO3

Bas B. Van Aken; Jan-Willem G. Bos; Robert A. de Groot; Thomas T. Palstra

doi:10.1103/PhysRevB.63.125127

Asymmetry of electron and hole doping in YMnO₃

Bas B. Van Aken, Jan-Willem G. Bos, Robert A. de Groot, Thomas T. Palstra

Research output: Contribution to journal › Article › Academic › peer-review

69 Citations (Scopus)

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 language	English
Article number	125127
Number of pages	4
Journal	Physical Review B (Condensed Matter and Materials Physics)
Volume	63
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevB.63.125127
Publication status	Published - 1 Jan 2001
Externally published	Yes

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10.1103/PhysRevB.63.125127

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AU - Bos, Jan-Willem G.

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AU - Palstra, Thomas T.

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AB - 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.

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Asymmetry of electron and hole doping in YMnO₃

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