Magnetism in epitaxial PrCoO3 and Pr0.7Y0.3CoO3 thin films

Ted D. Sanders, Urusa S. Alaan, Matthew T. Gray, Shameek Bose, Matthew Taylor, Mariona Cabero, Virat Mehta, Maria Varela, Chris Leighton, Yuri Suzuki

Research output: Contribution to journalArticle

Abstract

Lattice distortions can stabilize magnetic ground states not observed in the bulk for thin films of undoped cobalt perovskites ACoO3. We have found that lattice distortions, in the form of tensile epitaxial strain, can stabilize a ferromagnetic ground state in PrCoO3 thin films below 65 K. However, in Pr0.7Y0.3CoO3, which has a smaller unit cell, similar levels of tensile strain are insufficient to induce ferromagnetism. These results indicate the importance of A-site cation choice for Co spin-state and Co-O-Co exchange interactions, offering another dimension to tune magnetic order in thin film cobalt perovskites.

Original languageEnglish (US)
Pages (from-to)654-659
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume451
DOIs
StatePublished - Apr 1 2018

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Magnetism
perovskites
Cobalt
Thin films
Ground state
cobalt
thin films
ground state
Tensile strain
Ferromagnetism
Exchange interactions
Crystal lattices
ferromagnetism
Cations
Positive ions
cations
cells
interactions

Keywords

  • Chemical pressure
  • Cobaltites
  • Epitaxial oxide thin films
  • Epitaxial strain

Cite this

Sanders, T. D., Alaan, U. S., Gray, M. T., Bose, S., Taylor, M., Cabero, M., ... Suzuki, Y. (2018). Magnetism in epitaxial PrCoO3 and Pr0.7Y0.3CoO3 thin films. Journal of Magnetism and Magnetic Materials, 451, 654-659. https://doi.org/10.1016/j.jmmm.2017.11.127

Magnetism in epitaxial PrCoO3 and Pr0.7Y0.3CoO3 thin films. / Sanders, Ted D.; Alaan, Urusa S.; Gray, Matthew T.; Bose, Shameek; Taylor, Matthew; Cabero, Mariona; Mehta, Virat; Varela, Maria; Leighton, Chris; Suzuki, Yuri.

In: Journal of Magnetism and Magnetic Materials, Vol. 451, 01.04.2018, p. 654-659.

Research output: Contribution to journalArticle

Sanders, TD, Alaan, US, Gray, MT, Bose, S, Taylor, M, Cabero, M, Mehta, V, Varela, M, Leighton, C & Suzuki, Y 2018, 'Magnetism in epitaxial PrCoO3 and Pr0.7Y0.3CoO3 thin films', Journal of Magnetism and Magnetic Materials, vol. 451, pp. 654-659. https://doi.org/10.1016/j.jmmm.2017.11.127
Sanders, Ted D. ; Alaan, Urusa S. ; Gray, Matthew T. ; Bose, Shameek ; Taylor, Matthew ; Cabero, Mariona ; Mehta, Virat ; Varela, Maria ; Leighton, Chris ; Suzuki, Yuri. / Magnetism in epitaxial PrCoO3 and Pr0.7Y0.3CoO3 thin films. In: Journal of Magnetism and Magnetic Materials. 2018 ; Vol. 451. pp. 654-659.
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AU - Taylor, Matthew

AU - Cabero, Mariona

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