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Title: Oxygen-deficiency-activated anomalous transport in La2/3Sr1/3MnO3-δ thin films deposited by laser ablation
Authors: Liu, J.-M. 
Zhang, Y.X.
Liu, Z.G.
Du, Y.W.
Zhang, H.H.
Yu, Z.
Ong, C.K. 
Issue Date: 1-Apr-2002
Citation: Liu, J.-M., Zhang, Y.X., Liu, Z.G., Du, Y.W., Zhang, H.H., Yu, Z., Ong, C.K. (2002-04-01). Oxygen-deficiency-activated anomalous transport in La2/3Sr1/3MnO3-δ thin films deposited by laser ablation. Journal of Physics Condensed Matter 14 (12) : 3167-3173. ScholarBank@NUS Repository.
Abstract: The transport in oxygen-deficient polycrystalline La2/3Sr1/3MnO3-δ thin films deposited on Si(111) substrates using laser ablation is studied by measuring the resistivity and ac magnetic susceptibility over the range 2-300 K. The oxygen deficiency results in a serious shift of the insulating-metal (IM) transition toward the low-temperature side and anomalous transport behaviour over the low-temperature range. The ac susceptibility measurement reveals that, upon cooling, the sample exhibits a ferromagnetic transition, a weak anomaly at the IM transition and an antiferromagnetic (AFM) transition which may mainly arise from the charge ordering. Partial melting of the AFM state under a low magnetic field of 750 Oe is observed at 4.2 K.
Source Title: Journal of Physics Condensed Matter
ISSN: 09538984
DOI: 10.1088/0953-8984/14/12/307
Appears in Collections:Staff Publications

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