Large anisotropy in colossal magnetoresistance of charge orbital ordered epitaxial Sm0.5Ca0.5MnO3 films

Yunzhong Chen; J.R. Sun; J.L. Zhao; J. Wang; B.G. Shen; Nini Pryds

doi:10.1088/0953-8984/21/44/442001

Large anisotropy in colossal magnetoresistance of charge orbital ordered epitaxial Sm0.5Ca0.5MnO3 films

Yunzhong Chen, J.R. Sun, J.L. Zhao, J. Wang, B.G. Shen, Nini Pryds

Chinese Academy of Sciences

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We investigated the structure and magnetotransport properties of Sm0.5Ca0.5MnO3 (SCMO) films epitaxially grown on (011)-oriented SrTiO3 substrates, which exhibited clear charge/orbital ordering transition. A significant anisotropy of ~1000 in the colossal magnetoresistance (CMR) effect was observed in the films with a thickness between 50 and 80 nm, which was distinctly different from the basically isotropic CMR effect in bulk SCMO. The large anisotropy in the CMR can be ascribed to the intrinsic asymmetric strain in the film, which plays an important role in tuning the spin–orbit coupling in manganite films. The origin of the peculiar CMR effect is discussed.

Original language	English
Journal	Journal of Physics Condensed Matter
Volume	21
Pages (from-to)	442001
ISSN	0953-8984
DOIs	https://doi.org/10.1088/0953-8984/21/44/442001
Publication status	Published - 2009

Keywords

Magnetic refrigeration
Fuel Cells and hydrogen

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10.1088/0953-8984/21/44/442001

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title = "Large anisotropy in colossal magnetoresistance of charge orbital ordered epitaxial Sm0.5Ca0.5MnO3 films",

abstract = "We investigated the structure and magnetotransport properties of Sm0.5Ca0.5MnO3 (SCMO) films epitaxially grown on (011)-oriented SrTiO3 substrates, which exhibited clear charge/orbital ordering transition. A significant anisotropy of ~1000 in the colossal magnetoresistance (CMR) effect was observed in the films with a thickness between 50 and 80 nm, which was distinctly different from the basically isotropic CMR effect in bulk SCMO. The large anisotropy in the CMR can be ascribed to the intrinsic asymmetric strain in the film, which plays an important role in tuning the spin–orbit coupling in manganite films. The origin of the peculiar CMR effect is discussed.",

keywords = "Magnetic refrigeration, Fuel Cells and hydrogen, Magnetisk k{\o}ling, Br{\ae}ndselsceller og brint",

author = "Yunzhong Chen and J.R. Sun and J.L. Zhao and J. Wang and B.G. Shen and Nini Pryds",

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TY - JOUR

T1 - Large anisotropy in colossal magnetoresistance of charge orbital ordered epitaxial Sm0.5Ca0.5MnO3 films

AU - Chen, Yunzhong

AU - Sun, J.R.

AU - Zhao, J.L.

AU - Wang, J.

AU - Shen, B.G.

AU - Pryds, Nini

PY - 2009

Y1 - 2009

N2 - We investigated the structure and magnetotransport properties of Sm0.5Ca0.5MnO3 (SCMO) films epitaxially grown on (011)-oriented SrTiO3 substrates, which exhibited clear charge/orbital ordering transition. A significant anisotropy of ~1000 in the colossal magnetoresistance (CMR) effect was observed in the films with a thickness between 50 and 80 nm, which was distinctly different from the basically isotropic CMR effect in bulk SCMO. The large anisotropy in the CMR can be ascribed to the intrinsic asymmetric strain in the film, which plays an important role in tuning the spin–orbit coupling in manganite films. The origin of the peculiar CMR effect is discussed.

AB - We investigated the structure and magnetotransport properties of Sm0.5Ca0.5MnO3 (SCMO) films epitaxially grown on (011)-oriented SrTiO3 substrates, which exhibited clear charge/orbital ordering transition. A significant anisotropy of ~1000 in the colossal magnetoresistance (CMR) effect was observed in the films with a thickness between 50 and 80 nm, which was distinctly different from the basically isotropic CMR effect in bulk SCMO. The large anisotropy in the CMR can be ascribed to the intrinsic asymmetric strain in the film, which plays an important role in tuning the spin–orbit coupling in manganite films. The origin of the peculiar CMR effect is discussed.

KW - Magnetic refrigeration

KW - Fuel Cells and hydrogen

KW - Magnetisk køling

KW - Brændselsceller og brint

U2 - 10.1088/0953-8984/21/44/442001

DO - 10.1088/0953-8984/21/44/442001

M3 - Journal article

C2 - 21832458

SN - 0953-8984

VL - 21

SP - 442001

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

ER -

Large anisotropy in colossal magnetoresistance of charge orbital ordered epitaxial Sm0.5Ca0.5MnO3 films

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