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Title: Tuning the metal-insulator crossover and magnetism in SrRuO3 by ionic gating

Abstract

Reversible control of charge transport and magnetic properties without degradation is a key for device applications of transition metal oxides. Chemical doping during the growth of transition metal oxides can result in large changes in physical properties, but in most of the cases irreversibility is an inevitable constraint. We report a reversible control of charge transport, metal-insulator crossover and magnetism in field-effect devices based on ionically gated archetypal oxide system - SrRuO3. In these thin-film devices, the metal-insulator crossover temperature and the onset of magnetoresistance can be continuously and reversibly tuned in the range 90–250 K and 70–100 K, respectively, by application of a small gate voltage. We infer that a reversible diffusion of oxygen ions in the oxide lattice dominates the response of these materials to the gate electric field. These findings provide critical insights into both the understanding of ionically gated oxides and the development of novel applications.

Authors:
 [1];  [1];  [2];  [1];  [1]
  1. Rutgers Univ., Piscataway, NJ (United States)
  2. Univ. of Minnesota, Minneapolis, MN (United States)
Publication Date:
Research Org.:
Rutgers Univ., Piscataway, NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1221628
Grant/Contract Number:  
SC0005464
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 4; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; electronic and spintronic devices; electronic properties and materials; magnetic materials; magnetic properties and materials

Citation Formats

Yi, Hee Taek, Gao, Bin, Xie, Wei, Cheong, Sang -Wook, and Podzorov, Vitaly. Tuning the metal-insulator crossover and magnetism in SrRuO3 by ionic gating. United States: N. p., 2014. Web. doi:10.1038/srep06604.
Yi, Hee Taek, Gao, Bin, Xie, Wei, Cheong, Sang -Wook, & Podzorov, Vitaly. Tuning the metal-insulator crossover and magnetism in SrRuO3 by ionic gating. United States. https://doi.org/10.1038/srep06604
Yi, Hee Taek, Gao, Bin, Xie, Wei, Cheong, Sang -Wook, and Podzorov, Vitaly. Mon . "Tuning the metal-insulator crossover and magnetism in SrRuO3 by ionic gating". United States. https://doi.org/10.1038/srep06604. https://www.osti.gov/servlets/purl/1221628.
@article{osti_1221628,
title = {Tuning the metal-insulator crossover and magnetism in SrRuO3 by ionic gating},
author = {Yi, Hee Taek and Gao, Bin and Xie, Wei and Cheong, Sang -Wook and Podzorov, Vitaly},
abstractNote = {Reversible control of charge transport and magnetic properties without degradation is a key for device applications of transition metal oxides. Chemical doping during the growth of transition metal oxides can result in large changes in physical properties, but in most of the cases irreversibility is an inevitable constraint. We report a reversible control of charge transport, metal-insulator crossover and magnetism in field-effect devices based on ionically gated archetypal oxide system - SrRuO3. In these thin-film devices, the metal-insulator crossover temperature and the onset of magnetoresistance can be continuously and reversibly tuned in the range 90–250 K and 70–100 K, respectively, by application of a small gate voltage. We infer that a reversible diffusion of oxygen ions in the oxide lattice dominates the response of these materials to the gate electric field. These findings provide critical insights into both the understanding of ionically gated oxides and the development of novel applications.},
doi = {10.1038/srep06604},
journal = {Scientific Reports},
number = ,
volume = 4,
place = {United States},
year = {Mon Oct 13 00:00:00 EDT 2014},
month = {Mon Oct 13 00:00:00 EDT 2014}
}

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Cited by: 49 works
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