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Magneto-Optic Kerr Effect Studies of Two-Dimensional Magnetism

Araya-Pochet, J. / Ballentine, C. A. / Hsieh, T.-Y. / Erskine, J. L.

Abstract The Magneto-optic Kerr effect (MOKE) is used to investigate novel magnetic properties of epitaxial Fe films grown on Ag(100). Variable parameters of the study include temperature, film thickness, strength of the applied magnetic field (parallel to the surface) and photon energy. Two layer films (n=2) exhibit a linear dependence of magnetic moment and coersive force with temperature, and an (extrapolated) Curie temperature of 670°C, approximately 35% lower than the Curie temperature of bulk Fe (1043°C). Kerr effect signals scale linearly with film thickness for 3≤n≤10 atomic layers when the film is magnetized parallel to the surface, but for n<3, the Kerr effect signal departs significantly from linear behavior, and appears to vanish for n=1.

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Magneto-Optic Kerr Effect Studies of Two-Dimensional Magnetism

Araya-Pochet, J. / Ballentine, C. A. / Hsieh, T.-Y. / Erskine, J. L.

Abstract The Magneto-optic Kerr effect (MOKE) is used to investigate novel magnetic properties of epitaxial Fe films grown on Ag(100). Variable parameters of the study include temperature, film thickness, strength of the applied magnetic field (parallel to the surface) and photon energy. Two layer films (n=2) exhibit a linear dependence of magnetic moment and coersive force with temperature, and an (extrapolated) Curie temperature of 670°C, approximately 35% lower than the Curie temperature of bulk Fe (1043°C). Kerr effect signals scale linearly with film thickness for 3≤n≤10 atomic layers when the film is magnetized parallel to the surface, but for n<3, the Kerr effect signal departs significantly from linear behavior, and appears to vanish for n=1.

Magneto-Optic Kerr Effect Studies of Two-Dimensional Magnetism

Araya-Pochet, J. / Ballentine, C. A. / Hsieh, T.-Y. / Erskine, J. L.

Abstract The Magneto-optic Kerr effect (MOKE) is used to investigate novel magnetic properties of epitaxial Fe films grown on Ag(100). Variable parameters of the study include temperature, film thickness, strength of the applied magnetic field (parallel to the surface) and photon energy. Two layer films (n=2) exhibit a linear dependence of magnetic moment and coersive force with temperature, and an (extrapolated) Curie temperature of 670°C, approximately 35% lower than the Curie temperature of bulk Fe (1043°C). Kerr effect signals scale linearly with film thickness for 3≤n≤10 atomic layers when the film is magnetized parallel to the surface, but for n<3, the Kerr effect signal departs significantly from linear behavior, and appears to vanish for n=1.

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Title:

Magneto-Optic Kerr Effect Studies of Two-Dimensional Magnetism

Contributors:

Araya-Pochet, J. (author) / Ballentine, C. A. (author) / Hsieh, T.-Y. (author) / Erskine, J. L. (author)

Published in:

Solvay Conference on Surface Science ; 461-466

Springer Series in Surface Sciences ; 14

Publication date:

1988-01-01

Size:

6 pages

ISBN:

978-3-642-74220-0 , 978-3-642-74218-7

ISSN:

DOI:

https://doi.org/10.1007/978-3-642-74218-7_41

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Curie Temperature , Critical Exponent , Epitaxial Layer , Epitaxial Film , Kerr Effect Physics , Surface and Interface Science, Thin Films , Surfaces and Interfaces, Thin Films

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