Giant in-plane anisotropy in manganite thin films driven by strain-engineered double exchange interaction and electronic phase separation

C. L. Lu; Y. Y. Wu; Z. C. Xia; S. L. Yuan; L. Chen; Z. M. Tian; J. M. Liu; T. Wu

doi:10.1063/1.3643442

Giant in-plane anisotropy in manganite thin films driven by strain-engineered double exchange interaction and electronic phase separation

C. L. Lu^*, Y. Y. Wu, Z. C. Xia, S. L. Yuan, L. Chen, Z. M. Tian, J. M. Liu, T. Wu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We investigate epitaxial Pr_0.65(Ca_0.7Sr _0.3)_0.35MnO₃ thin film grown on orthorhombic (110) NdGaO₃ substrate which breaks the lattice symmetry and affects the phase separated ground state. As a result of the anisotropic substrate strain, giant in-plane magnetic and magnetotransport anisotropy are observed, which is related to the anisotropic coupling and competition between the double-exchange interaction and the Jahn-Teller distortion. Furthermore, the in-plane anisotropy shows a distinct enhancement near the metal-insulator transition, implying a significant contribution from the phase separation to the anisotropic transport behaviors.

Original language	English (US)
Article number	122510
Journal	Applied Physics Letters
Volume	99
Issue number	12
DOIs	https://doi.org/10.1063/1.3643442
State	Published - Sep 19 2011
Externally published	Yes

Bibliographical note

Funding Information:
This work was partly supported by the Singapore National Research Foundation, NSFC (Grant No. 11104090), and the Ministry of Education of China (Grant No. 309020). J.M.L. was supported by NSFC (Grant Nos. 50832002 and 11074113).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Giant in-plane anisotropy in manganite thin films driven by strain-engineered double exchange interaction and electronic phase separation",

abstract = "We investigate epitaxial Pr0.65(Ca0.7Sr 0.3)0.35MnO3 thin film grown on orthorhombic (110) NdGaO3 substrate which breaks the lattice symmetry and affects the phase separated ground state. As a result of the anisotropic substrate strain, giant in-plane magnetic and magnetotransport anisotropy are observed, which is related to the anisotropic coupling and competition between the double-exchange interaction and the Jahn-Teller distortion. Furthermore, the in-plane anisotropy shows a distinct enhancement near the metal-insulator transition, implying a significant contribution from the phase separation to the anisotropic transport behaviors.",

author = "Lu, {C. L.} and Wu, {Y. Y.} and Xia, {Z. C.} and Yuan, {S. L.} and L. Chen and Tian, {Z. M.} and Liu, {J. M.} and T. Wu",

note = "Funding Information: This work was partly supported by the Singapore National Research Foundation, NSFC (Grant No. 11104090), and the Ministry of Education of China (Grant No. 309020). J.M.L. was supported by NSFC (Grant Nos. 50832002 and 11074113).",

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doi = "10.1063/1.3643442",

language = "English (US)",

volume = "99",

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T1 - Giant in-plane anisotropy in manganite thin films driven by strain-engineered double exchange interaction and electronic phase separation

AU - Lu, C. L.

AU - Wu, Y. Y.

AU - Xia, Z. C.

AU - Yuan, S. L.

AU - Chen, L.

AU - Tian, Z. M.

AU - Liu, J. M.

AU - Wu, T.

N1 - Funding Information: This work was partly supported by the Singapore National Research Foundation, NSFC (Grant No. 11104090), and the Ministry of Education of China (Grant No. 309020). J.M.L. was supported by NSFC (Grant Nos. 50832002 and 11074113).

PY - 2011/9/19

Y1 - 2011/9/19

N2 - We investigate epitaxial Pr0.65(Ca0.7Sr 0.3)0.35MnO3 thin film grown on orthorhombic (110) NdGaO3 substrate which breaks the lattice symmetry and affects the phase separated ground state. As a result of the anisotropic substrate strain, giant in-plane magnetic and magnetotransport anisotropy are observed, which is related to the anisotropic coupling and competition between the double-exchange interaction and the Jahn-Teller distortion. Furthermore, the in-plane anisotropy shows a distinct enhancement near the metal-insulator transition, implying a significant contribution from the phase separation to the anisotropic transport behaviors.

AB - We investigate epitaxial Pr0.65(Ca0.7Sr 0.3)0.35MnO3 thin film grown on orthorhombic (110) NdGaO3 substrate which breaks the lattice symmetry and affects the phase separated ground state. As a result of the anisotropic substrate strain, giant in-plane magnetic and magnetotransport anisotropy are observed, which is related to the anisotropic coupling and competition between the double-exchange interaction and the Jahn-Teller distortion. Furthermore, the in-plane anisotropy shows a distinct enhancement near the metal-insulator transition, implying a significant contribution from the phase separation to the anisotropic transport behaviors.

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U2 - 10.1063/1.3643442

DO - 10.1063/1.3643442

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VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 12

M1 - 122510

ER -

Giant in-plane anisotropy in manganite thin films driven by strain-engineered double exchange interaction and electronic phase separation

Abstract

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