Open AccessConduction mechanisms in (La0.7Sr0.3MnO3)m(BiFeO3)n superlattice
Author(s) -
朱晖文,
姜平,
王顺利,
毛凌峰,
唐为华
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.5710
Subject(s) - superlattice , materials science , thermal conduction , condensed matter physics , insulator (electricity) , sputter deposition , sputtering , optoelectronics , thin film , composite material , nanotechnology , physics
(La0.7Sr0.3MnO3)m(BiFeO3)n superlattices were grown in situ on SrTiO3(001) substrates by rf magnetron sputtering. The current-voltage measurements were performed under the temperature of 50—150℃ for the superlattices specimens. The analysis showed that the leakage current increased with increasing the temperature or decreasing the BFO thickness in the samples. And the conduction mechanisms of the prepared (La0.7Sr0.3MnO3)m(BiFeO3)n superlattices were analyzed according to common insulator conduction models. It exhibited that the space-charge-limited current were dominated in the as fabricated (La0.7Sr0.3MnO3)m(BiFeO3)n superlattices in high temperature or high electrical field.