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

Abstract

The structural, magnetic, and electrical properties of superlattices composed of the ferromagnetic/metal La{sub 0.7}Sr{sub 0.3}MnO{sub 3} and non-magnetic/metal La{sub 0.5}Sr{sub 0.5}TiO{sub 3} grown on (001)-oriented SrTiO{sub 3} substrates have been investigated. 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. Therefore, ferromagnetism can be controlled effectively through the chemical identity and the thickness of the individual superlattice layers.

Authors:
; ;  [1];  [2];  [1]
  1. Department of Chemical Engineering and Materials Science, University of California, Davis, Davis, California 95616 (United States)
  2. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
Publication Date:
OSTI Identifier:
22036796
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 111; Journal Issue: 1; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; CHARGE EXCHANGE; CRYSTAL GROWTH; CRYSTAL STRUCTURE; ELECTRICAL PROPERTIES; FERROMAGNETIC MATERIALS; FERROMAGNETISM; INTERFACES; LANTHANUM COMPOUNDS; LAYERS; MANGANATES; SCANNING ELECTRON MICROSCOPY; SOFT X RADIATION; STRONTIUM TITANATES; SUBSTRATES; SUPERLATTICES; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Yang, F, Gu, M, Takamura, Y, Arenholz, E, Browning, N D, and 3Department of Molecular and Cellular Biology, University of California, Davis, Davis, California 95616. The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices. United States: N. p., 2012. Web. doi:10.1063/1.3674325.
Yang, F, Gu, M, Takamura, Y, Arenholz, E, Browning, N D, & 3Department of Molecular and Cellular Biology, University of California, Davis, Davis, California 95616. The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices. United States. https://doi.org/10.1063/1.3674325
Yang, F, Gu, M, Takamura, Y, Arenholz, E, Browning, N D, and 3Department of Molecular and Cellular Biology, University of California, Davis, Davis, California 95616. Sun . "The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices". United States. https://doi.org/10.1063/1.3674325.
@article{osti_22036796,
title = {The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices},
author = {Yang, F and Gu, M and Takamura, Y and Arenholz, E and Browning, N D and 3Department of Molecular and Cellular Biology, University of California, Davis, Davis, California 95616},
abstractNote = {The structural, magnetic, and electrical properties of superlattices composed of the ferromagnetic/metal La{sub 0.7}Sr{sub 0.3}MnO{sub 3} and non-magnetic/metal La{sub 0.5}Sr{sub 0.5}TiO{sub 3} grown on (001)-oriented SrTiO{sub 3} substrates have been investigated. 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. Therefore, 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/22036796}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 1,
volume = 111,
place = {United States},
year = {2012},
month = {1}
}