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Effect of substrate on the electrical transport property of Ba2FeNbO6 double perovskite thin films

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Published 16 February 2007 • 2007 IOP Publishing Ltd
, , Citation N Rama et al 2007 J. Phys. D: Appl. Phys. 40 1430 DOI 10.1088/0022-3727/40/5/018

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1 Materials Science Research Centre, Indian Institute of Technology Madras, Chennai-600036, India

2 Department of Physics, Indian Institute of Technology Madras, Chennai-600036, India

3 Walther-Meissner Institute, Bavarian Academy of Sciences, Walther-Meissner Strasse Garching, Germany

Dates

  1. Received 19 September 2006
  2. Published

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0022-3727/40/5/1430

Abstract

Ba2FeNbO6 (BFNO) is an antiferromagnetic insulator with a Néel temperature TN of 25 K. We have systematically studied the effect of substrate on the electrical transport of this compound under different growth conditions. We find that while the bulk and thin films grown on LaAlO3 and NdGaO3 substrates are insulating, the film grown on SrTiO3 substrate shows metallic behaviour. The anomalous behaviour of this compound on SrTiO3 is attributed to the defect conduction of SrTiO3 induced by the film growth conditions.

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10.1088/0022-3727/40/5/018