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Nitride tuning of lanthanide chromites

Nitride tuning of lanthanide chromites

Scientific Highlights Materials for information science and electronics 22 March 2016 3928 hits jags

c6cc00744a

Ashley P. Black, Hannah E. Johnston, Judith Oró-Solé, Bernat Bozzo, Clemens Ritter, Carlos Frontera, J. Paul Attfield and Amparo Fuertes*; Chem. Commun., 2016,52, 4317-4320; DOI: 10.1039/C6CC00744A

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 O2−/N3− anion substitution suppresses the magnetic transition far less drastically than Ln3+/M2+ (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.

Related Topics: Materials for information science and electronics

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