Influence of different substrates on phase separation in La 1-x-yPr yCa xMnO 3 thin films

Dane Gillaspie; J. X. Ma; Hong Ying Zhai; T. Z. Ward; Hans M. Christen; E. W. Plummer; J. Shen

doi:10.1063/1.2162050

Influence of different substrates on phase separation in La _1-x-yPr _yCa _xMnO ₃ thin films

Dane Gillaspie, J. X. Ma, Hong Ying Zhai, T. Z. Ward, Hans M. Christen, E. W. Plummer, J. Shen

Functional Hybrid Nanomaterials

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

53 Scopus citations

Abstract

Large scale phase separation between ferromagnetic metallic and charge-ordered insulating states in La1-x-y Pry Cax MnO3 (LPCMO) crystals and thin films is very sensitive to structural and magnetic changes and is responsible for the enhanced magnetoresistance in LPCMO compared to its parent compounds. By epitaxially growing LPCMO thin films on different substrates, the strain on the LPCMO thin films can be changed, thereby controlling the energy balance between the two phases. LPCMO films of several different thicknesses have been grown on NdGaO3 (NGO), SrTiO3 (STO), SrLaGaO4 (SLGO), and LaAlO3 (LAO) substrates. The compressive strain from the LAO and SLGO substrates suppresses the long-range charge ordering in these samples and enhances magnetoresistance and magnetic hystereses. Conversely, the tensile strain from the STO and NGO substrates enhances the long-range charge ordering and reduces the magnetoresistance and magnetic hystereses.

Original language	English
Article number	08S901
Journal	Journal of Applied Physics
Volume	99
Issue number	8
DOIs	https://doi.org/10.1063/1.2162050
State	Published - 2006

Funding

This work was supported by Oak Ridge National Laboratory (ORNL), managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725, and by the U.S. National Science Foundation under Contract No. DMR 0451163.

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10.1063/1.2162050

Cite this

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title = "Influence of different substrates on phase separation in La 1-x-yPr yCa xMnO 3 thin films",

abstract = "Large scale phase separation between ferromagnetic metallic and charge-ordered insulating states in La1-x-y Pry Cax MnO3 (LPCMO) crystals and thin films is very sensitive to structural and magnetic changes and is responsible for the enhanced magnetoresistance in LPCMO compared to its parent compounds. By epitaxially growing LPCMO thin films on different substrates, the strain on the LPCMO thin films can be changed, thereby controlling the energy balance between the two phases. LPCMO films of several different thicknesses have been grown on NdGaO3 (NGO), SrTiO3 (STO), SrLaGaO4 (SLGO), and LaAlO3 (LAO) substrates. The compressive strain from the LAO and SLGO substrates suppresses the long-range charge ordering in these samples and enhances magnetoresistance and magnetic hystereses. Conversely, the tensile strain from the STO and NGO substrates enhances the long-range charge ordering and reduces the magnetoresistance and magnetic hystereses.",

author = "Dane Gillaspie and Ma, {J. X.} and Zhai, {Hong Ying} and Ward, {T. Z.} and Christen, {Hans M.} and Plummer, {E. W.} and J. Shen",

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AU - Gillaspie, Dane

AU - Ma, J. X.

AU - Zhai, Hong Ying

AU - Ward, T. Z.

AU - Christen, Hans M.

AU - Plummer, E. W.

AU - Shen, J.

PY - 2006

Y1 - 2006

N2 - Large scale phase separation between ferromagnetic metallic and charge-ordered insulating states in La1-x-y Pry Cax MnO3 (LPCMO) crystals and thin films is very sensitive to structural and magnetic changes and is responsible for the enhanced magnetoresistance in LPCMO compared to its parent compounds. By epitaxially growing LPCMO thin films on different substrates, the strain on the LPCMO thin films can be changed, thereby controlling the energy balance between the two phases. LPCMO films of several different thicknesses have been grown on NdGaO3 (NGO), SrTiO3 (STO), SrLaGaO4 (SLGO), and LaAlO3 (LAO) substrates. The compressive strain from the LAO and SLGO substrates suppresses the long-range charge ordering in these samples and enhances magnetoresistance and magnetic hystereses. Conversely, the tensile strain from the STO and NGO substrates enhances the long-range charge ordering and reduces the magnetoresistance and magnetic hystereses.

AB - Large scale phase separation between ferromagnetic metallic and charge-ordered insulating states in La1-x-y Pry Cax MnO3 (LPCMO) crystals and thin films is very sensitive to structural and magnetic changes and is responsible for the enhanced magnetoresistance in LPCMO compared to its parent compounds. By epitaxially growing LPCMO thin films on different substrates, the strain on the LPCMO thin films can be changed, thereby controlling the energy balance between the two phases. LPCMO films of several different thicknesses have been grown on NdGaO3 (NGO), SrTiO3 (STO), SrLaGaO4 (SLGO), and LaAlO3 (LAO) substrates. The compressive strain from the LAO and SLGO substrates suppresses the long-range charge ordering in these samples and enhances magnetoresistance and magnetic hystereses. Conversely, the tensile strain from the STO and NGO substrates enhances the long-range charge ordering and reduces the magnetoresistance and magnetic hystereses.

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