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Pulsed laser deposition of La1-xSrxMnO3 : thin-film properties and spintronic applications
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© 2013 IOP Publishing. This is the accepted version of the following article: Majumdar, Sayani & van Dijken, Sebastiaan. 2013. Pulsed laser deposition of La1-xSrxMnO3 : thin-film properties and spintronic applications. Journal of Physics D: Applied Physics. Volume 47, Issue 3. 034010/1-15. ISSN 0022-3727 (printed). DOI: 10.1088/0022-3727/47/3/034010, which has been published in final form at http://iopscience.iop.org/0022-3727/47/3/034010/.
This work is distributed under the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/).
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Majumdar, Sayani
van Dijken, Sebastiaan
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en
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034010/1-15
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Journal of Physics D: Applied Physics, Volume 47, Issue 3
Abstract
Materials engineering on the nanoscale by precise control of growth parameters can lead to many unusual and fascinating physical properties. The development of pulsed laser deposition (PLD) 25 years ago has enabled atomistic control of thin films and interfaces and as such it has contributed significantly to advances in fundamental material science. One application area is the research field of spintronics, which requires optimized nanomaterials for the generation and transport of spin-polarized carriers. The mixed-valence manganite La1−xSrxMnO3 (LSMO) is an interesting material for spintronics due to its intrinsic magnetoresistance properties, electric-field tunable metal–insulator transitions, and half-metallic band structure. Studies on LSMO thin-film growth by PLD show that the deposition temperature, oxygen pressure, laser fluence, strain due to substrate–film lattice mismatch and post-deposition annealing conditions significantly influence the magnetic and electrical transport properties of LSMO. For spintronic structures, robust ferromagnetic exchange interactions and metallic conductivity are desirable properties. In this paper, we review the physics of LSMO thin films and the important role that PLD played in advancing the field of LSMO-based spintronics. Some specific application areas including magnetic tunnel junctions, multiferroic tunnel junctions and organic spintronic devices are highlighted, and the advantages, drawbacks and opportunities of PLD-grown LSMO for next-generation spintronic devices are discussed.
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Majumdar, Sayani & van Dijken, Sebastiaan. 2013. Pulsed laser deposition of La1-xSrxMnO3 : thin-film properties and spintronic applications. Journal of Physics D: Applied Physics. Volume 47, Issue 3. 034010/1-15. ISSN 0022-3727 (printed). DOI: 10.1088/0022-3727/47/3/034010