Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/102088
Title: Electric field tuning of phase separation in manganite thin films
Authors: Lourembam, James
Wu, Jianchun
Ding, Junfeng
Lin, Weinan
Wu, Tom
Keywords: DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films
Issue Date: 2014
Source: Lourembam, J., Wu, J., Ding, J., Lin, W., & Wu, T. (2014). Electric field tuning of phase separation in manganite thin films. Physical Review B, 89(1), 014425.
Series/Report no.: Physical review B
Abstract: In this paper, we investigate the electric field effect on epitaxial Pr0.65(Ca0.75Sr0.25)0.35MnO3 thin films in electric double-layer transistors. Different from the conventional transistors with semiconducting channels, the sub(micrometer)-scale phase separation in the manganite channels is expected to result in inhomogeneous distribution of mobile carriers and local enhancement of electric field. The field effect is much larger in the low-temperature phase separation region compared to that in the high-temperature polaron transport region. Further enhancement of electroresistance is achieved by applying a magnetic field, and a 250% modulation of resistance is observed at 80 K, equivalent to an increase of the ferromagnetic metallic phase fraction by 0.51%, as estimated by the general effective medium model. Our results illustrate the complementary nature of electric and magnetic field effects in phase-separated manganites, providing insights on such novel electronic devices based on complex oxides.
URI: https://hdl.handle.net/10356/102088
http://hdl.handle.net/10220/18907
DOI: 10.1103/PhysRevB.89.014425
Rights: © 2014 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevB.89.014425]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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