Correlation between magnetism and “dark stripes” in strained La{sub 1−x}Sr{sub x}CoO{sub 3} epitaxial films (0 ≤ x ≤ 0.1)

Lan, Q. Q.; Shen, X.; Yang, H. W.; Zhang, H. R.; Zhang, J.; Guan, X. X.; Yao, Y.; Wang, Y. G.

doi:10.1063/1.4937562

Title: Correlation between magnetism and “dark stripes” in strained La{sub 1−x}Sr{sub x}CoO{sub 3} epitaxial films (0 ≤ x ≤ 0.1)

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Abstract

Using the technique of aberration-corrected scanning transmission electron microscopy, we performed a systematic analysis for the atomic lattice of the strained La{sub 1−x}Sr{sub x}CoO{sub 3} (0 ≤ x ≤ 0.1) epitaxial films, which have drawn a great attention in recent years because of their anomalous magnetism. Superstructures characterized by dark stripes are observed in the lattice image, evolving with combined Sr-doping and lattice strains. Fascinatingly, we found a close relation between the proportion of the Co ions in dark stripes and the saturation magnetization of the film: the latter grows linearly with the former. This result implies that the magnetism could be exclusively ascribed to the Co ions in dark stripes.

Authors:

Lan, Q. Q. ^[1]; Shen, X.; Yang, H. W.; Zhang, H. R.; Zhang, J.; Guan, X. X.; Yao, Y.; Wang, Y. G.

Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000 (China)

Publication Date:: Mon Dec 14 00:00:00 EST 2015

OSTI Identifier:: 22486239

Resource Type:: Journal Article

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 107; Journal Issue: 24; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COBALT IONS; CORRELATIONS; EPITAXY; FILMS; IMAGES; MAGNETISM; MAGNETIZATION; SATURATION; STRAINS; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats


                    Lan, Q. Q., Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, Shen, X., Yang, H. W., Zhang, H. R., Zhang, J., Guan, X. X., Yao, Y., Wang, Y. G., Yu, R. C., E-mail: rcyu@iphy.ac.cn, Sun, J. R., E-mail: jrsun@iphy.ac.cn, and Peng, Y., E-mail: pengy@lzu.edu.cn. Correlation between magnetism and “dark stripes” in strained La{sub 1−x}Sr{sub x}CoO{sub 3} epitaxial films (0 ≤ x ≤ 0.1).  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4937562.

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                    Lan, Q. Q., Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, Shen, X., Yang, H. W., Zhang, H. R., Zhang, J., Guan, X. X., Yao, Y., Wang, Y. G., Yu, R. C., E-mail: rcyu@iphy.ac.cn, Sun, J. R., E-mail: jrsun@iphy.ac.cn, & Peng, Y., E-mail: pengy@lzu.edu.cn. Correlation between magnetism and “dark stripes” in strained La{sub 1−x}Sr{sub x}CoO{sub 3} epitaxial films (0 ≤ x ≤ 0.1).  United States.  https://doi.org/10.1063/1.4937562

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                    Lan, Q. Q., Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, Shen, X., Yang, H. W., Zhang, H. R., Zhang, J., Guan, X. X., Yao, Y., Wang, Y. G., Yu, R. C., E-mail: rcyu@iphy.ac.cn, Sun, J. R., E-mail: jrsun@iphy.ac.cn, and Peng, Y., E-mail: pengy@lzu.edu.cn. 2015.  
        "Correlation between magnetism and “dark stripes” in strained La{sub 1−x}Sr{sub x}CoO{sub 3} epitaxial films (0 ≤ x ≤ 0.1)".  United States.  https://doi.org/10.1063/1.4937562.

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@article{osti_22486239,

  title        = {Correlation between magnetism and “dark stripes” in strained La{sub 1−x}Sr{sub x}CoO{sub 3} epitaxial films (0 ≤ x ≤ 0.1)},

  author       = {Lan, Q. Q. and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 and Shen, X. and Yang, H. W. and Zhang, H. R. and Zhang, J. and Guan, X. X. and Yao, Y. and Wang, Y. G. and Yu, R. C., E-mail: rcyu@iphy.ac.cn and Sun, J. R., E-mail: jrsun@iphy.ac.cn and Peng, Y., E-mail: pengy@lzu.edu.cn},

  abstractNote = {Using the technique of aberration-corrected scanning transmission electron microscopy, we performed a systematic analysis for the atomic lattice of the strained La{sub 1−x}Sr{sub x}CoO{sub 3} (0 ≤ x ≤ 0.1) epitaxial films, which have drawn a great attention in recent years because of their anomalous magnetism. Superstructures characterized by dark stripes are observed in the lattice image, evolving with combined Sr-doping and lattice strains. Fascinatingly, we found a close relation between the proportion of the Co ions in dark stripes and the saturation magnetization of the film: the latter grows linearly with the former. This result implies that the magnetism could be exclusively ascribed to the Co ions in dark stripes.},

  doi          = {10.1063/1.4937562},

  url          = {https://www.osti.gov/biblio/22486239},
  journal      = {Applied Physics Letters},

  issn         = {0003-6951},

  number       = 24,

  volume       = 107,

  place        = {United States},

  year         = {Mon Dec 14 00:00:00 EST 2015},

  month        = {Mon Dec 14 00:00:00 EST 2015}

}

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