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Room Temperature Ferromagnetism of Ni-doped SnO2 System

Author

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  • Junying Zhang
  • Qu Yun
  • Qianghong Wang

Abstract

A series of Sn1-xNixO2 films were fabricated by sol-gel method. All samples have pure rutile structure and exhibit room temperature ferromagnetism (RTFM). Magnetic moment per Ni ion decreases with the increase of Ni doping because antiferromagnetic super-exchange interaction takes place in the nearest neighbour Ni2+ ions for the samples with high x. The results of the annealing at oxidizing and reducing atmosphere show oxygen vacancies play a crucial role in producing ferromagnetism. This result supports that the origin of RTFM can be explained with Bound magnetic polaron (BMP) model.

Suggested Citation

  • Junying Zhang & Qu Yun & Qianghong Wang, 2010. "Room Temperature Ferromagnetism of Ni-doped SnO2 System," Modern Applied Science, Canadian Center of Science and Education, vol. 4(11), pages 124-124, November.
    • Handle: RePEc:ibn:masjnl:v:4:y:2010:i:11:p:124
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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