Please use this identifier to cite or link to this item:
Title: Tunable electronic transport properties of DyScO₃/SrTiO₃ polar heterointerface
Authors: Li, D. F.
Wang, Yan
Dai, Jiyan
Subjects: Carrier mobility
Doping profiles
Dysprosium compounds
Insulating thin films
Interface phenomena
Interface states
Metal-insulator transition
Strontium compounds
Issue Date: 21-Mar-2011
Publisher: American Institue of Physics
Source: Applied physics letters, 21 Mar. 2011, v. 98, 122108, p. 1-3.
Abstract: Electronic transport properties of DyScO₃/SrTiO₃ polar heterointerface grown at different oxygen pressures are studied. This DyScO₃/SrTiO₃ polar heterointerface exhibits much higher charge mobility, up to 10⁴ cm² V⁻¹ s⁻¹, compared to the LaAlO₃/SrTiO₃ system due to relatively lower lattice mismatch between the film and substrate. More significantly, the DyScO₃ film deposited under 10⁻⁴ mbar oxygen pressure presents an interfacial metal-to-semiconductor conducting mechanism transition at 90 K. Field effect transport measurement results reveal that this transition can be modulated by field effect through controlling the electron doping level of the interface originated from interfacial electronic reconstruction.
Rights: © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in D. F. Li, Yan Wang, & J. Y. Dai, Appl. Phys. Lett. 98, 122108 (2011) and may be found at
Type: Journal/Magazine Article
DOI: 10.1063/1.3570694
ISSN: 0003-6951 (print)
1077-3118 (online)
Appears in Collections:AP Journal/Magazine Articles

Files in This Item:
File Description SizeFormat 
Li_Tunable_Electronic_Transport.pdf801.88 kBAdobe PDFView/Open

All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated. No item in the PolyU IR may be reproduced for commercial or resale purposes.