Stress-induced surface magnetization of (La{sub 0.7}Sr{sub 0.3})MnO{sub 3} thin films

doi:https://doi.org/10.1109/20.619630

Title: Stress-induced surface magnetization of (La{sub 0.7}Sr{sub 0.3})MnO{sub 3} thin films

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Abstract

The role of stress on magnetic properties of epitaxial (La{sub 0.7}Sr{sub 0.3}) MnO{sub 3} (LSMO) films has been studied. The authors have investigated 1,100 {angstrom} thick LSMO films deposited on LaAlO{sub 3} (Sample L, under a compressive stress) and SrTiO{sub 3} (Sample S, under a tensile stress) using the magnetic force microscopy (MFM), DC hysteresis loop, ferromagnetic resonance (FMR) measurements. The magnetic force microscope image of Sample L shows a maze-like pattern indicating a sizable out-of-plane magnetization, while the magnetic image of Sample S shows a feather-like pattern indicative of an in-plane magnetization. The hysteresis loop and ferromagnetic resonance measurements give quantitative evidence for the role of the lattice mismatch between the film and the substrate in the magnetic anisotropy of the two films. The systematic examination of various thickness LSMO films on LaAlO{sub 3} reveals that the maze pattern is exhibited only between 500 {angstrom} and 1,700 {angstrom} thick films. Despite of larger anisotropy, no maze pattern is observed in films thinner than 360 {angstrom}.

Authors:

Kwon, C; Lofland, S E; Bhagat, S M; Rajeswari, M; Venkatesan, T; Ramesh, R; Kratz, A R; Gomez, R D ^[1]

Univ. of Maryland, College Park, MD (United States)

Publication Date:: 1997-09-01

OSTI Identifier:: 566465

Report Number(s):: CONF-970468-
Journal ID: IEMGAQ; ISSN 0018-9464; TRN: IM9805%%144

Resource Type:: Journal Article

Journal Name:: IEEE Transactions on Magnetics

Additional Journal Information:: Journal Volume: 33; Journal Issue: 5Pt2; Conference: 1997 IEEE international magnetics conference (Intermag `97), New Orleans, LA (United States), 1-4 Apr 1997; Other Information: PBD: Sep 1997

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; MANGANATES; STRONTIUM COMPOUNDS; LANTHANUM COMPOUNDS; MAGNETIC PROPERTIES; SUBSTRATES; STRONTIUM TITANATES; ALUMINATES; STRESSES

Citation Formats


                    Kwon, C, Lofland, S E, Bhagat, S M, Rajeswari, M, Venkatesan, T, Ramesh, R, Kratz, A R, and Gomez, R D. Stress-induced surface magnetization of (La{sub 0.7}Sr{sub 0.3})MnO{sub 3} thin films.  United States: N. p., 1997. 
        Web.  doi:10.1109/20.619630.

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                    Kwon, C, Lofland, S E, Bhagat, S M, Rajeswari, M, Venkatesan, T, Ramesh, R, Kratz, A R, & Gomez, R D. Stress-induced surface magnetization of (La{sub 0.7}Sr{sub 0.3})MnO{sub 3} thin films.  United States.  https://doi.org/10.1109/20.619630

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                    Kwon, C, Lofland, S E, Bhagat, S M, Rajeswari, M, Venkatesan, T, Ramesh, R, Kratz, A R, and Gomez, R D. Mon .  
        "Stress-induced surface magnetization of (La{sub 0.7}Sr{sub 0.3})MnO{sub 3} thin films".  United States.  https://doi.org/10.1109/20.619630.

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@article{osti_566465,

  title        = {Stress-induced surface magnetization of (La{sub 0.7}Sr{sub 0.3})MnO{sub 3} thin films},

  author       = {Kwon, C and Lofland, S E and Bhagat, S M and Rajeswari, M and Venkatesan, T and Ramesh, R and Kratz, A R and Gomez, R D},

  abstractNote = {The role of stress on magnetic properties of epitaxial (La{sub 0.7}Sr{sub 0.3}) MnO{sub 3} (LSMO) films has been studied. The authors have investigated 1,100 {angstrom} thick LSMO films deposited on LaAlO{sub 3} (Sample L, under a compressive stress) and SrTiO{sub 3} (Sample S, under a tensile stress) using the magnetic force microscopy (MFM), DC hysteresis loop, ferromagnetic resonance (FMR) measurements. The magnetic force microscope image of Sample L shows a maze-like pattern indicating a sizable out-of-plane magnetization, while the magnetic image of Sample S shows a feather-like pattern indicative of an in-plane magnetization. The hysteresis loop and ferromagnetic resonance measurements give quantitative evidence for the role of the lattice mismatch between the film and the substrate in the magnetic anisotropy of the two films. The systematic examination of various thickness LSMO films on LaAlO{sub 3} reveals that the maze pattern is exhibited only between 500 {angstrom} and 1,700 {angstrom} thick films. Despite of larger anisotropy, no maze pattern is observed in films thinner than 360 {angstrom}.},

  doi          = {10.1109/20.619630},

  url          = {https://www.osti.gov/biblio/566465},
  journal      = {IEEE Transactions on Magnetics},
number       = 5Pt2,

  volume       = 33,

  place        = {United States},

  year         = {1997},

  month        = {9}

}

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