Observation of anomalous Hall effect in EuO epitaxial thin films grown by a pulse laser deposition

T. Yamasaki; K. Ueno; A. Tsukazaki; T. Fukumura; M. Kawasaki

doi:10.1063/1.3557050

Observation of anomalous Hall effect in EuO epitaxial thin films grown by a pulse laser deposition

T. Yamasaki, K. Ueno, A. Tsukazaki, T. Fukumura, M. Kawasaki

Materials Property Division

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

We have found that there is a narrow but distinct window in oxygen pressure for growing phase-pure epitaxial EuO films by a pulsed laser deposition. With finely decreasing the oxygen pressure, the electrical property is varied from insulating to metallic with an enhancement in Curie temperature from 70 to 120 K. The anomalous Hall contribution was clearly observed in Hall resistance at 5 K in the highest electron density sample. The saturated anomalous Hall conductivity (0.2 S/cm) is rather high in comparison with those of the other ferromagnetic oxides, probably due to strong spin-orbit coupling in EuO.

Original language	English
Article number	082116
Journal	Applied Physics Letters
Volume	98
Issue number	8
DOIs	https://doi.org/10.1063/1.3557050
Publication status	Published - 2011 Feb 21

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We have found that there is a narrow but distinct window in oxygen pressure for growing phase-pure epitaxial EuO films by a pulsed laser deposition. With finely decreasing the oxygen pressure, the electrical property is varied from insulating to metallic with an enhancement in Curie temperature from 70 to 120 K. The anomalous Hall contribution was clearly observed in Hall resistance at 5 K in the highest electron density sample. The saturated anomalous Hall conductivity (0.2 S/cm) is rather high in comparison with those of the other ferromagnetic oxides, probably due to strong spin-orbit coupling in EuO.",

author = "T. Yamasaki and K. Ueno and A. Tsukazaki and T. Fukumura and M. Kawasaki",

note = "Funding Information: The authors thank J. Falson and D. Maryenko for critical reading of the manuscript. T.Y. is supported by Research Fellowships of the JSPS. This work was partly supported by Grant-in-Aids for Scientific Research (Grant Nos. 21686002 and 22103004) from the MEXT of Japan as well as by Asahi Glass Foundation.",

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AU - Yamasaki, T.

AU - Ueno, K.

AU - Tsukazaki, A.

AU - Fukumura, T.

AU - Kawasaki, M.

N1 - Funding Information: The authors thank J. Falson and D. Maryenko for critical reading of the manuscript. T.Y. is supported by Research Fellowships of the JSPS. This work was partly supported by Grant-in-Aids for Scientific Research (Grant Nos. 21686002 and 22103004) from the MEXT of Japan as well as by Asahi Glass Foundation.

PY - 2011/2/21

Y1 - 2011/2/21

N2 - We have found that there is a narrow but distinct window in oxygen pressure for growing phase-pure epitaxial EuO films by a pulsed laser deposition. With finely decreasing the oxygen pressure, the electrical property is varied from insulating to metallic with an enhancement in Curie temperature from 70 to 120 K. The anomalous Hall contribution was clearly observed in Hall resistance at 5 K in the highest electron density sample. The saturated anomalous Hall conductivity (0.2 S/cm) is rather high in comparison with those of the other ferromagnetic oxides, probably due to strong spin-orbit coupling in EuO.

AB - We have found that there is a narrow but distinct window in oxygen pressure for growing phase-pure epitaxial EuO films by a pulsed laser deposition. With finely decreasing the oxygen pressure, the electrical property is varied from insulating to metallic with an enhancement in Curie temperature from 70 to 120 K. The anomalous Hall contribution was clearly observed in Hall resistance at 5 K in the highest electron density sample. The saturated anomalous Hall conductivity (0.2 S/cm) is rather high in comparison with those of the other ferromagnetic oxides, probably due to strong spin-orbit coupling in EuO.

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Observation of anomalous Hall effect in EuO epitaxial thin films grown by a pulse laser deposition

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