Ferromagnetic properties of epitaxial La2NiMnO6 thin films grown by pulsed laser deposition

M. Kitamura, I. Ohkubo, M. Kubota, Y. Matsumoto, H. Koinuma, M. Oshima

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

La2NiMnO6 (LNMO) thin films were fabricated on (100) oriented SrTiO3 single crystal substrates by pulsed laser deposition method. The film growth conditions were found to significantly affect the magnetic moment and ferromagnetic transition temperature of LNMO films. Epitaxial LNMO films exhibiting the ferromagnetism equivalent to that of bulk polycrystal were grown only in such a narrow region of growth temperature and oxygen pressure that stabilized Ni2+ -O- Mn4+ superexchange ferromagnetic interaction. Out of this narrow region, the ferromagnetism is significantly suppressed by the appearance of secondary phases, locally disordered Ni and Mn ions, and oxygen vacancies.

Original languageEnglish
Article number132506
JournalApplied Physics Letters
Volume94
Issue number13
DOIs
Publication statusPublished - 2009 Apr 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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