Epitaxial growth and properties of (001)-oriented TbBaCo2O6−δ films

6533b81ffe1ef96bd1276fa0

RESEARCH PRODUCT

Epitaxial growth and properties of (001)-oriented TbBaCo2O6−δ films

Gerhard Jakob Helmut Dosch Helmut Dosch A. Vigliante N. V. Kasper Reinhard K. Kremer Peter Wochner H.d. Carstanjen

subject

Phase transition Carbon film Materials science Ferromagnetism Condensed matter physics Analytical chemistry General Physics and Astronomy Antiferromagnetism Deposition (phase transition)Substrate (electronics)Epitaxy Pulsed laser deposition

description

Thin epitaxial films of TbBaCo2O6−δ cobaltites have been synthesized using pulsed laser deposition. It was found that the film properties are extremely sensitive to the oxygen pressure during deposition, temperature of the substrate, and the cooling rate. Growth parameters were optimized for δ≈0.5 films with ordered Tb and Ba ions, as well as oxygen vacancies. The properties of these c-axis oriented films are similar to bulk TbBaCo2O5.5: they show a metal-insulator phase transition at TMI≈350 K, ferromagnetic order below TC=285 K, and antiferromagnetism at T<Ti≈230 K.

year	journal	country	edition	language
2008-01-01	Journal of Applied Physics

https://doi.org/10.1063/1.2827504

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