Cation-ordering effects in the single layered manganite La2/3 Sr4/3 MnO4

B. B. Nelson-Cheeseman; A. B. Shah; T. S. Santos; S. D. Bader; J. M. Zuo; A. Bhattacharya

doi:10.1063/1.3554387

Cation-ordering effects in the single layered manganite La₂/3 Sr_4/3 MnO₄

B. B. Nelson-Cheeseman, A. B. Shah, T. S. Santos, S. D. Bader, J. M. Zuo, A. Bhattacharya

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

Abstract

Epitaxial La_1-x Sr_x MnO₃ SrO (x=1/3) films were synthesized as random alloys and cation-ordered analogs to probe how cation ordering affects the properties of a two dimensional manganite. The films show evidence for a spin glass like phase below 20 K and weak ferromagnetic ordering up to 130 K. There is a dramatic difference in magnetic anisotropy and the low temperature transport mechanism depending on the cation order, which is consistent with differences in Mn 3d orbital occupancies. This work indicates that cation ordering can significantly alter the Mn 3d orbital ground state in these correlated electron systems.

Original language	English (US)
Article number	072505
Journal	Applied Physics Letters
Volume	98
Issue number	7
DOIs	https://doi.org/10.1063/1.3554387
State	Published - Feb 14 2011

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3554387

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@article{bcc8787bf2f545c8a21825c70b3075ca,

title = "Cation-ordering effects in the single layered manganite La2/3 Sr4/3 MnO4",

abstract = "Epitaxial La1-x Srx MnO3 SrO (x=1/3) films were synthesized as random alloys and cation-ordered analogs to probe how cation ordering affects the properties of a two dimensional manganite. The films show evidence for a spin glass like phase below 20 K and weak ferromagnetic ordering up to 130 K. There is a dramatic difference in magnetic anisotropy and the low temperature transport mechanism depending on the cation order, which is consistent with differences in Mn 3d orbital occupancies. This work indicates that cation ordering can significantly alter the Mn 3d orbital ground state in these correlated electron systems.",

author = "Nelson-Cheeseman, {B. B.} and Shah, {A. B.} and Santos, {T. S.} and Bader, {S. D.} and Zuo, {J. M.} and A. Bhattacharya",

note = "Funding Information: Work at Argonne, including the use of the Center for Nanoscale Materials, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. B.N.-C., S.D.B., and A.B. acknowledge the support of the Division of Materials Science, DOE BES. Electron microscopy was carried out at the Frederick Seitz MRL Central Facilities, University of Illinois, which are partially supported by the U.S. DOE under Grant Nos. DE-FG02-07ER46453 and DE-FG02-07ER46471. ",

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language = "English (US)",

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AU - Nelson-Cheeseman, B. B.

AU - Shah, A. B.

AU - Santos, T. S.

AU - Bader, S. D.

AU - Zuo, J. M.

AU - Bhattacharya, A.

N1 - Funding Information: Work at Argonne, including the use of the Center for Nanoscale Materials, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. B.N.-C., S.D.B., and A.B. acknowledge the support of the Division of Materials Science, DOE BES. Electron microscopy was carried out at the Frederick Seitz MRL Central Facilities, University of Illinois, which are partially supported by the U.S. DOE under Grant Nos. DE-FG02-07ER46453 and DE-FG02-07ER46471.

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N2 - Epitaxial La1-x Srx MnO3 SrO (x=1/3) films were synthesized as random alloys and cation-ordered analogs to probe how cation ordering affects the properties of a two dimensional manganite. The films show evidence for a spin glass like phase below 20 K and weak ferromagnetic ordering up to 130 K. There is a dramatic difference in magnetic anisotropy and the low temperature transport mechanism depending on the cation order, which is consistent with differences in Mn 3d orbital occupancies. This work indicates that cation ordering can significantly alter the Mn 3d orbital ground state in these correlated electron systems.

AB - Epitaxial La1-x Srx MnO3 SrO (x=1/3) films were synthesized as random alloys and cation-ordered analogs to probe how cation ordering affects the properties of a two dimensional manganite. The films show evidence for a spin glass like phase below 20 K and weak ferromagnetic ordering up to 130 K. There is a dramatic difference in magnetic anisotropy and the low temperature transport mechanism depending on the cation order, which is consistent with differences in Mn 3d orbital occupancies. This work indicates that cation ordering can significantly alter the Mn 3d orbital ground state in these correlated electron systems.

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