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Strong Influence of Tb Concentration on Domain Structure and Kerr Effect of TbxFe1−x Thin Films

Published online by Cambridge University Press:  03 September 2012

V. Florescu ,
C. Rau  and
N. J. Zheng
V. Florescu
Affiliation:
Rice University, Department of Physics and Rice Quantum Institute, Houston, Texas 77251 – 1892.
C. Rau
Affiliation:
Rice University, Department of Physics and Rice Quantum Institute, Houston, Texas 77251 – 1892.
N. J. Zheng
Affiliation:
Rice University, Department of Physics and Rice Quantum Institute, Houston, Texas 77251 – 1892.
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Abstract

Amorphous TbFe films with perpendicular magnetic anisotropy are attracting wide attention as promising candidates for erasable high - density Magneto - optical recording and thermomagnetic printing. TbxFe1−x thin films with 0 ≤ × ≤ 0.37 are deposited on glass substrates using r.f. sputtering. The Magnetic remanent domain structures are studied at room temperature using the longitudinal and polar Kerr effect. Samples with 0 ≤ × ≤ 0.23 exhibit magnetic in-plane anisotropy, while samples with 0.26 ≤ × ≤ 0.37 possess uniaxial anisotropy with easy axis perpendicular to the film plane. The remanent domain structures depend strongly on Tb content. High remanence and high coercivity are found for samples with 0.27 ≤ × ≤ 0.34 which is confirmed by additional vibrating sample Magnetometer (VSM) Measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 313: Symposium Q1 – Magnetic Ultrathin Films, Multilayers and Surfaces/Magnetic Interfaces-Physics and Characterizations , 1993 , 327
Copyright
Copyright © Materials Research Society 1993

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References

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