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Issue 44, 2017
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Dipole-correlated carrier transportation and orbital reconfiguration in strain-distorted SrNbxTi1−xO3/KTaO3

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Abstract

Strong electron-correlations can result in un-conventional transportation behaviour, such as metal-insulator transitions, high temperature superconductivity and bad metal conduction. Here we report a distinct transportation characteristic achieved by actively coupling the carriers with randomly distributed lattice-dipoles for strain-distorted SrNbxTi1−xO3. The strong electron correlations split the conduction band, and lead to a distinguished thermal-emitted carrier transportation with an activation energy of ∼10−2 eV. Further consistency was demonstrated by the respective changes in orbital configurations observed in near edge X-ray absorption fine structures. The present investigation demonstrates new mechanisms for regulating the carrier transportation using polaronic electron correlations.

Graphical abstract: Dipole-correlated carrier transportation and orbital reconfiguration in strain-distorted SrNbxTi1−xO3/KTaO3

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Publication details

The article was received on 22 Sep 2017, accepted on 16 Oct 2017 and first published on 16 Oct 2017


Article type: Paper
DOI: 10.1039/C7CP06495K
Citation: Phys. Chem. Chem. Phys., 2017,19, 29913-29917
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    Dipole-correlated carrier transportation and orbital reconfiguration in strain-distorted SrNbxTi1−xO3/KTaO3

    J. Chen, X. Ke, J. Wang, T. Yajima, H. Qian and S. Sun, Phys. Chem. Chem. Phys., 2017, 19, 29913
    DOI: 10.1039/C7CP06495K

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