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Please use this identifier to cite or link to this item: https://doi.org/10.1038/srep25455
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dc.titleControlling Kondo-like Scattering at the SrTiO3-based Interfaces
dc.contributor.authorHan, K
dc.contributor.authorPalina, N
dc.contributor.authorZeng, S.W
dc.contributor.authorHuang, Z
dc.contributor.authorLi, C.J
dc.contributor.authorZhou, W.X
dc.contributor.authorWan, D.-Y
dc.contributor.authorZhang, L.C
dc.contributor.authorChi, X
dc.contributor.authorGuo, R
dc.contributor.authorChen, J.S
dc.contributor.authorVenkatesan, T
dc.contributor.authorRusydi, A
dc.contributor.authorAriando, NUSNNI-NanoCore, National University of Singapore, Singapore, 117411, Singapore, Department of Physics, National University of Singapore, Singapore, 117542, Singapore, National University of Singapore Graduate School for Integrative Sciences and Engineering (NGS), 28 Medical Drive, Singapore, 117456, Singapore
dc.date.accessioned2020-09-09T01:36:59Z
dc.date.available2020-09-09T01:36:59Z
dc.date.issued2016
dc.identifier.citationHan, K, Palina, N, Zeng, S.W, Huang, Z, Li, C.J, Zhou, W.X, Wan, D.-Y, Zhang, L.C, Chi, X, Guo, R, Chen, J.S, Venkatesan, T, Rusydi, A, Ariando, NUSNNI-NanoCore, National University of Singapore, Singapore, 117411, Singapore, Department of Physics, National University of Singapore, Singapore, 117542, Singapore, National University of Singapore Graduate School for Integrative Sciences and Engineering (NGS), 28 Medical Drive, Singapore, 117456, Singapore (2016). Controlling Kondo-like Scattering at the SrTiO3-based Interfaces. Scientific Reports 6 : 25455. ScholarBank@NUS Repository. https://doi.org/10.1038/srep25455
dc.identifier.issn20452322
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/174972
dc.description.abstractThe observation of magnetic interaction at the interface between nonmagnetic oxides has attracted much attention in recent years. In this report, we show that the Kondo-like scattering at the SrTiO3-based conducting interface is enhanced by increasing the lattice mismatch and growth oxygen pressure PO2. For the 26-unit-cell LaAlO3/SrTiO3 (LAO/STO) interface with lattice mismatch being 3.0%, the Kondo-like scattering is observed when PO2 is beyond 1 mTorr. By contrast, when the lattice mismatch is reduced to 1.0% at the (La0.3Sr0.7)(Al0.65Ta0.35)O3/SrTiO3 (LSAT/STO) interface, the metallic state is always preserved up to PO2 of 100 mTorr. The data from Hall measurement and X-ray absorption near edge structure (XANES) spectroscopy reveal that the larger amount of localized Ti3+ ions are formed at the LAO/STO interface compared to LSAT/STO. Those localized Ti3+ ions with unpaired electrons can be spin-polarized to scatter mobile electrons, responsible for the Kondo-like scattering observed at the LAO/STO interface. © 2016, Nature Publishing Group. All rights reserved.
dc.publisherNature Publishing Group
dc.sourceUnpaywall 20200831
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.contributor.departmentNUS NANOSCIENCE & NANOTECH INITIATIVE
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.contributor.departmentCHEMISTRY
dc.contributor.departmentELECTRICAL AND COMPUTER ENGINEERING
dc.description.doi10.1038/srep25455
dc.description.sourcetitleScientific Reports
dc.description.volume6
dc.description.page25455
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