DOI: 10.1063/1.3059606. Ferromagnetism in tetragonally distorted LaCoO3 thin films

Ferromagnetism in tetragonally distorted LaCoO3 thin films

10.1063/1.3059606

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Thin films of epitaxial LaCoO3 were synthesized on SrTiO3 and (La,Sr)(Al,Ta)O3 substrates, varying the oxygen background pressure in order to evaluate the impact of epitaxial growth as well as oxygen vacancies on the long range magnetic order. The epitaxial constraints from the substrate impose a tetragonal distortion compared to the bulk form. X-ray absorption and x-ray magnetic circular dichroism measurements confirmed that the ferromagnetism arises from the Co ions and persists through the entire thickness of the film. It was found that for the thin films to show ferromagnetic order they have to be grown under the higher oxygen pressures. A correlation of the structure and magnetism suggests that the tetragonal distortions induce the ferromagnetism.

Bibliography

Mehta, V. V., Liberati, M., Wong, F. J., Chopdekar, R. V., Arenholz, E., & Suzuki, Y. (2009). Ferromagnetism in tetragonally distorted LaCoO3 thin films. Journal of Applied Physics, 105(7).

Authors 6

Virat Vasav Mehta (first)
Marco Liberati (additional)
Franklin J. Wong (additional)
Rajesh Vilas Chopdekar (additional)
Elke Arenholz (additional)
Yuri Suzuki (additional)

References 16 Referenced 50

10.1016/S0031-8914(53)80011-X / Physica (Amsterdam) (1953)
10.1016/0031-8914(64)90182-X / Physica (Amsterdam) (1964)
10.1103/PhysRev.155.932 / Phys. Rev. (1967)
10.1103/PhysRevB.64.174401 / Phys. Rev. B (2001)
10.1103/PhysRevLett.97.176405 / Phys. Rev. Lett. (2006)
10.1103/PhysRevB.77.045130 / Phys. Rev. B (2008)
10.1103/PhysRevB.66.020402 / Phys. Rev. B (2002)
10.1103/PhysRevB.47.16124 / Phys. Rev. B (1993)
10.1103/PhysRevB.54.5309 / Phys. Rev. B (1996)
10.1103/PhysRevB.77.045123 / Phys. Rev. B (2008)
10.1103/PhysRevB.70.014402 / Phys. Rev. B (2004)
10.1103/PhysRevB.77.014434 / Phys. Rev. B (2008)
J. M. Rondinelli and N. Spaldin, arXiv:cond-mat.mtrl-sci0808.2075.v2.
10.1016/j.tsf.2005.03.055 / Thin Solid Films (2005)
10.1103/PhysRevB.69.180102 / Phys. Rev. B (2004)
10.1103/PhysRevB.74.245111 / Phys. Rev. B (2006)

Dates

Type	When
Created	16 years, 6 months ago (Feb. 7, 2009, 3:52 a.m.)
Deposited	2 years, 1 month ago (July 4, 2023, 1:38 p.m.)
Indexed	3 weeks, 3 days ago (July 30, 2025, 6:52 a.m.)
Issued	16 years, 6 months ago (Feb. 6, 2009)
Published	16 years, 6 months ago (Feb. 6, 2009)
Published Online	16 years, 6 months ago (Feb. 6, 2009)
Published Print	16 years, 4 months ago (April 1, 2009)

Funders 0

None

BibTeX

@article{Mehta_2009, title={Ferromagnetism in tetragonally distorted LaCoO3 thin films}, volume={105}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.3059606}, DOI={10.1063/1.3059606}, number={7}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Mehta, Virat Vasav and Liberati, Marco and Wong, Franklin J. and Chopdekar, Rajesh Vilas and Arenholz, Elke and Suzuki, Yuri}, year={2009}, month=feb }

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