Perpendicular magnetic anisotropy and strong magneto-optic properties of SrRuO3 epitaxial films

L. Klein; J. S. Dodge; T. H. Geballe; A. Kapitulnik; A. F. Marshall; L. Antognazza; K. Char

doi:10.1063/1.113962

Perpendicular magnetic anisotropy and strong magneto-optic properties of SrRuO₃ epitaxial films

L. Klein
, J. S. Dodge
, T. H. Geballe
, A. Kapitulnik
, A. F. Marshall
, L. Antognazza
, K. Char

Stanford University
Conductus Inc.

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

107 Scopus citations

Abstract

Epitaxial films of the ferromagnetic perovskite SrRuO₃ were measured with a bulk magnetometer and with a local magneto-optic Sagnac interferometer in transmission and in reflection. We find a magnetic easy axis perpendicular to the films, and for saturated remanent magnetization along this direction the Faraday rotation and the Kerr rotation at λ=840 nm are about 0.75×10⁵ deg/cm and 0.85°, respectively. The temperature dependence of the remanent magnetization in the low temperature limit is dominated by spin-wave excitations, yielding a notable decrease with T^3/2. Using Sagnac-Kerr scanning and transmission electron microscopy imaging we correlate the coercivity with the grain size.

Original language	English
Pages (from-to)	2427
Number of pages	1
Journal	Applied Physics Letters
Volume	66
Issue number	18
DOIs	https://doi.org/10.1063/1.113962
State	Published - 1995
Externally published	Yes

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title = "Perpendicular magnetic anisotropy and strong magneto-optic properties of SrRuO3 epitaxial films",

abstract = "Epitaxial films of the ferromagnetic perovskite SrRuO3 were measured with a bulk magnetometer and with a local magneto-optic Sagnac interferometer in transmission and in reflection. We find a magnetic easy axis perpendicular to the films, and for saturated remanent magnetization along this direction the Faraday rotation and the Kerr rotation at λ=840 nm are about 0.75{\texttimes}105 deg/cm and 0.85°, respectively. The temperature dependence of the remanent magnetization in the low temperature limit is dominated by spin-wave excitations, yielding a notable decrease with T3/2. Using Sagnac-Kerr scanning and transmission electron microscopy imaging we correlate the coercivity with the grain size.",

author = "L. Klein and Dodge, \{J. S.\} and Geballe, \{T. H.\} and A. Kapitulnik and Marshall, \{A. F.\} and L. Antognazza and K. Char",

year = "1995",

doi = "10.1063/1.113962",

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journal = "Applied Physics Letters",

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T1 - Perpendicular magnetic anisotropy and strong magneto-optic properties of SrRuO3 epitaxial films

AU - Klein, L.

AU - Dodge, J. S.

AU - Geballe, T. H.

AU - Kapitulnik, A.

AU - Marshall, A. F.

AU - Antognazza, L.

AU - Char, K.

PY - 1995

Y1 - 1995

N2 - Epitaxial films of the ferromagnetic perovskite SrRuO3 were measured with a bulk magnetometer and with a local magneto-optic Sagnac interferometer in transmission and in reflection. We find a magnetic easy axis perpendicular to the films, and for saturated remanent magnetization along this direction the Faraday rotation and the Kerr rotation at λ=840 nm are about 0.75×105 deg/cm and 0.85°, respectively. The temperature dependence of the remanent magnetization in the low temperature limit is dominated by spin-wave excitations, yielding a notable decrease with T3/2. Using Sagnac-Kerr scanning and transmission electron microscopy imaging we correlate the coercivity with the grain size.

AB - Epitaxial films of the ferromagnetic perovskite SrRuO3 were measured with a bulk magnetometer and with a local magneto-optic Sagnac interferometer in transmission and in reflection. We find a magnetic easy axis perpendicular to the films, and for saturated remanent magnetization along this direction the Faraday rotation and the Kerr rotation at λ=840 nm are about 0.75×105 deg/cm and 0.85°, respectively. The temperature dependence of the remanent magnetization in the low temperature limit is dominated by spin-wave excitations, yielding a notable decrease with T3/2. Using Sagnac-Kerr scanning and transmission electron microscopy imaging we correlate the coercivity with the grain size.

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VL - 66

SP - 2427

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 18

ER -

Perpendicular magnetic anisotropy and strong magneto-optic properties of SrRuO₃ epitaxial films

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