Nitride tuning of lanthanide chromites

Ashley P Black, Hannah E Johnston, Judith Oró-Solé, Bernat Bozzo, Clemens Ritter, Carlos Frontera, J Paul Attfield, Amparo Fuertes

Research output: Contribution to journalArticlepeer-review

Abstract

LnCrO3-xNx perovskites with Ln = La, Pr and Nd and nitrogen contents up to x = 0.59 have been synthesised through ammonolysis of LnCrO4 precursors. These new materials represent one of the few examples of chromium oxynitrides. Hole-doping through O(2-)/N(3-) anion substitution suppresses the magnetic transition far less drastically than Ln(3+)/M(2+) (M = Ca, Sr) cation substitutions because of the greater covalency of metal-nitride bonds. Hence, nitride-doping is a more benign method for doping metal oxides without suppressing electronic transitions.

Original languageEnglish
Pages (from-to)4317-20
Number of pages4
JournalChemical Communications
Volume52
Issue number23
DOIs
Publication statusPublished - 10 Mar 2016

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