Manipulating electronic phase separation in strongly correlated oxides with an ordered array of antidots

Zhang, Kai; Du, Kai; Liu, Hao; Zhang, X. -G.; Lan, Fanli; Lin, Hanxuan; Wei, Wengang; Zhu, Yinyan; Kou, Yunfang; Shao, Jian; Niu, Jiebin; Wang, Wenbin; Wu, Ruqian; Yin, Lifeng; Plummer, E. W.; Shen, Jian

doi:10.1073/pnas.1512326112

Title: Manipulating electronic phase separation in strongly correlated oxides with an ordered array of antidots

Journal Article · Mon Jul 20 00:00:00 EDT 2015 · Proceedings of the National Academy of Sciences of the United States of America

DOI:https://doi.org/10.1073/pnas.1512326112· OSTI ID:1348208

Zhang, Kai ^[1]; Du, Kai ^[1]; Liu, Hao ^[1]; Zhang, X. -G. ^[2]; Lan, Fanli ^[1]; Lin, Hanxuan ^[1]; Wei, Wengang ^[1]; Zhu, Yinyan ^[1]; Kou, Yunfang ^[1]; Shao, Jian ^[1]; Niu, Jiebin ^[1]; Wang, Wenbin ^[1]; Wu, Ruqian ^[1]; Yin, Lifeng ^[3]; Plummer, E. W. ^[4]; Shen, Jian ^[3]

Fudan Univ., Shanghai (China)
Univ. of Florida, Gainesville, FL (United States)
Fudan Univ., Shanghai (China); Collaborative Innovation Center of Advanced Microstructures, Nanjing (China)
Louisiana State Univ., Baton Rouge, LA (United States)

The interesting transport and magnetic properties in manganites depend sensitively on the nucleation and growth of electronic phase-separated domains. In this paper, by fabricating antidot arrays in La_0.325Pr_0.3Ca_0.375MnO₃ (LPCMO) epitaxial thin films, we create ordered arrays of micrometer-sized ferromagnetic metallic (FMM) rings in the LPCMO films that lead to dramatically increased metal–insulator transition temperatures and reduced resistances. The FMM rings emerge from the edges of the antidots where the lattice symmetry is broken. Based on our Monte Carlo simulation, these FMM rings assist the nucleation and growth of FMM phase domains increasing the metal–insulator transition with decreasing temperature or increasing magnetic field. Finally, this study points to a way in which electronic phase separation in manganites can be artificially controlled without changing chemical composition or applying external field.

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Research Organization:: Louisiana State Univ., Baton Rouge, LA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0002136

OSTI ID:: 1348208

Journal Information:: Proceedings of the National Academy of Sciences of the United States of America, Vol. 112, Issue 31; ISSN 0027-8424

Publisher:: National Academy of Sciences, Washington, DC (United States)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 13 works

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Cited By (5)

Influence of Fe3O4 on metal–insulator transition temperature of La0.7Ca0.3MnO3 thin films Guan, Xiaofen; Ma, Rongrong; Zhou, Guowei Journal of Materials Science, Vol. 55, Issue 1 https://doi.org/10.1007/s10853-019-04023-4	journal	September 2019
Huge magnetoresistance and ultrasharp metamagnetic transition in polycrystalline Sm0.5Ca0.25Sr0.25MnO3 Banik, Sanjib; Das, Kalipada; Paramanik, Tapas NPG Asia Materials, Vol. 10, Issue 9 https://doi.org/10.1038/s41427-018-0085-7	journal	September 2018
A large enhancement of magnetocaloric effect by chemical ordering in manganites Wang, Yanmei; Zhu, Yinyan; Liu, Hao Journal of Materials Chemistry C, Vol. 6, Issue 5 https://doi.org/10.1039/c7tc05369j	journal	January 2018
Microstructural, Magnetic, and Optical Properties of Pr-Doped Perovskite Manganite La0.67Ca0.33MnO3 Nanoparticles Synthesized via Sol-Gel Process Xia, Weiren; Wu, Heng; Xue, Piaojie Nanoscale Research Letters, Vol. 13, Issue 1 https://doi.org/10.1186/s11671-018-2553-y	journal	May 2018
Huge magnetoresistance and ultra-sharp metamagnetic transition in polycrystalline ${Sm_{0.5}Ca_{0.25}Sr_{0.25}MnO_3}$ Banik, Sanjib; Das, Kalipada; Paramanik, Tapas arXiv https://doi.org/10.48550/arxiv.1710.03007	preprint	January 2017

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36 MATERIALS SCIENCE
manganites
metal–insulator transition
electronic phase separation
antidot
magnetization

Title: Manipulating electronic phase separation in strongly correlated oxides with an ordered array of antidots

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