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Title: Modulation of the transport behavior by magnetic field in (La0.8Bi0.2)0.67Ca0.33MnO3/SrNb0.008Ti0.992O3 oxide heterojunction
Authors: Yan, L. 
Zhang, X.Y. 
Liu, H.J.
Ong, C.K. 
Keywords: All-oxide junction
Rectifying effect
Issue Date: 1-Jul-2008
Citation: Yan, L., Zhang, X.Y., Liu, H.J., Ong, C.K. (2008-07-01). Modulation of the transport behavior by magnetic field in (La0.8Bi0.2)0.67Ca0.33MnO3/SrNb0.008Ti0.992O3 oxide heterojunction. Physica B: Condensed Matter 403 (13-16) : 2446-2449. ScholarBank@NUS Repository.
Abstract: All-oxide heterojunction was fabricated by depositing manganite (La0.8Bi0.2)0.67Ca0.33MnO3 (LBCMO) thin layer on n-type semiconductive SrNb0.008Ti0.992O3 (SNTO) substrate. The current-voltage curve (I-V) of the heterostructure showed rectifying characteristics at temperatures ranging from 80 to 200 K and non-rectifying behavior at temperatures higher than 240 K. The current flowing through the heterojunction at a given biased voltage can be modulated by the external magnetic field. The effect of the magnetic field on the magnetoresistance (MR) was more pronounced at a negative bias voltage (MR=-23.6%) than that at a positive bias voltage (MR=-4.4%) under the magnetic field of 10 kOe. © 2008 Elsevier B.V. All rights reserved.
Source Title: Physica B: Condensed Matter
ISSN: 09214526
DOI: 10.1016/j.physb.2008.01.003
Appears in Collections:Staff Publications

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