Please use this identifier to cite or link to this item:
https://doi.org/10.1016/S0167-577X(01)00457-8
DC Field | Value | |
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dc.title | Low-field magnetoresistance in oxygen-deficient La0.5Sr0.5MnO3 thin films as approached by spin-polarized tunneling model | |
dc.contributor.author | Yuan, G.L. | |
dc.contributor.author | Liu, J.-M. | |
dc.contributor.author | Chan, H.L.W. | |
dc.contributor.author | Choy, C.L. | |
dc.contributor.author | Ong, C.K. | |
dc.contributor.author | Liu, Z.G. | |
dc.contributor.author | Du, Y.W. | |
dc.date.accessioned | 2014-10-16T09:31:20Z | |
dc.date.available | 2014-10-16T09:31:20Z | |
dc.date.issued | 2002-03 | |
dc.identifier.citation | Yuan, G.L., Liu, J.-M., Chan, H.L.W., Choy, C.L., Ong, C.K., Liu, Z.G., Du, Y.W. (2002-03). Low-field magnetoresistance in oxygen-deficient La0.5Sr0.5MnO3 thin films as approached by spin-polarized tunneling model. Materials Letters 53 (1-2) : 76-82. ScholarBank@NUS Repository. https://doi.org/10.1016/S0167-577X(01)00457-8 | |
dc.identifier.issn | 0167577X | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/97105 | |
dc.description.abstract | The low-field magnetoresistance (LFMR) of oxygen-deficient La0.5Sr0.5MnO3 (LSMO) thin films deposited by laser ablation under various oxygen pressures is studied with characterization of the microstructural, electro- and magneto-transport properties in relation to oxygen vacancies, and explained by the spin-polarized tunneling (SPT) model. Significant oxygen deficiency dependence of these properties is revealed. It is argued that the insulating and non-ferromagnetic zones centered with the oxygen vacancies, together with grain boundaries, form barriers for electron tunneling, and enhanced low-field magnetoresistance is obtained for the films with optimized oxygen deficiency. The high spin-flip probability for the films with serious oxygen deficiency is predicted. © 2002 Elsevier Science B.V. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0167-577X(01)00457-8 | |
dc.source | Scopus | |
dc.subject | Low-field magnetoresistance | |
dc.subject | LSMO | |
dc.subject | Spin-polarized tunneling | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.description.doi | 10.1016/S0167-577X(01)00457-8 | |
dc.description.sourcetitle | Materials Letters | |
dc.description.volume | 53 | |
dc.description.issue | 1-2 | |
dc.description.page | 76-82 | |
dc.description.coden | MLETD | |
dc.identifier.isiut | 000174159900014 | |
Appears in Collections: | Staff Publications |
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