The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices

doi:https://doi.org/10.1063/1.3674325

Title: The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices

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Abstract

We investigate the structural, magnetic, and electrical properties of superlattices composed of the ferromagnetic/metal La _0.7Sr _0.3MnO ₃ and non-magnetic/metal La _0.5Sr _0.5TiO ₃ grown on (001)-oriented SrTiO ₃ substrates. Using a combination of bulk magnetometry, soft x-ray magnetic spectroscopy, and scanning transmission electron microscopy, we demonstrate that robust ferromagnetic properties can be maintained in this superlattice system where charge transfer at the interfaces is minimized. Thus, ferromagnetism can be controlled effectively through the chemical identity and the thickness of the individual superlattice layers.

Authors:

Yang, F. ^[1]; Gu, M. ^[2]; Arenholz, E. ^[3]; Browning, N. D. ^[4]; Takamura, Y. ^[2]

Univ. of California, Davis, CA (United States). Department of Chemical Engineering and Materials Science
Univ. of California, Davis, CA (United States). Department of Chemical Engineering and Materials Science
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Univ. of California, Davis, CA (United States). Department of Molecular and Cellular Biology

Publication Date:: 2012-01-05

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)

OSTI Identifier:: 1212094

Report Number(s):: LBNL-5642E
Journal ID: ISSN 0021-8979

DOE Contract Number:: AC02-05CH11231; FG02-03ER46057; DMR-0747896

Resource Type:: Journal Article

Journal Name:: Journal of Applied Physics

Additional Journal Information:: Journal Volume: 111; Journal Issue: 1; Journal ID: ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; Superlattices; Charge transfer; Interfacial properties; Ferromagnetic materials; Ferromagnetism

Citation Formats


                    Yang, F., Gu, M., Arenholz, E., Browning, N. D., and Takamura, Y. The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices.  United States: N. p., 2012. 
        Web.  doi:10.1063/1.3674325.

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                    Yang, F., Gu, M., Arenholz, E., Browning, N. D., & Takamura, Y. The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices.  United States.  https://doi.org/10.1063/1.3674325

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                    Yang, F., Gu, M., Arenholz, E., Browning, N. D., and Takamura, Y. Thu .  
        "The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices".  United States.  https://doi.org/10.1063/1.3674325.  https://www.osti.gov/servlets/purl/1212094.

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@article{osti_1212094,

  title        = {The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices},

  author       = {Yang, F. and Gu, M. and Arenholz, E. and Browning, N. D. and Takamura, Y.},

  abstractNote = {We investigate the structural, magnetic, and electrical properties of superlattices composed of the ferromagnetic/metal La0.7Sr0.3MnO3 and non-magnetic/metal La0.5Sr0.5TiO3 grown on (001)-oriented SrTiO3 substrates. Using a combination of bulk magnetometry, soft x-ray magnetic spectroscopy, and scanning transmission electron microscopy, we demonstrate that robust ferromagnetic properties can be maintained in this superlattice system where charge transfer at the interfaces is minimized. Thus, ferromagnetism can be controlled effectively through the chemical identity and the thickness of the individual superlattice layers.},

  doi          = {10.1063/1.3674325},

  url          = {https://www.osti.gov/biblio/1212094},
  journal      = {Journal of Applied Physics},

  issn         = {0021-8979},

  number       = 1,

  volume       = 111,

  place        = {United States},

  year         = {2012},

  month        = {1}

}

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