Observation of periodic oscillations in magnetization-induced second harmonic generation at the Mn Co interface

V. K. Valev; A. Kirilyuk; F. Dalla Longa; J. T. Kohlhepp; B. Koopmans; Th Rasing

doi:10.1103/PhysRevB.75.012401

Observation of periodic oscillations in magnetization-induced second harmonic generation at the Mn Co interface

V. K. Valev, A. Kirilyuk, F. Dalla Longa, J. T. Kohlhepp, B. Koopmans, Th Rasing

Department of Physics

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30 Citations (SciVal)

Abstract

Magnetization-induced optical second harmonic generation (MSHG) from exchange-biased Mn Co thin films shows monolayer period oscillations at the Mn Co interface as a function of Co thickness. Similar oscillations are found in the exchange bias (HE) and the coercivity (HC) in both the interface sensitive MSHG and the bulk sensitive magneto-optical Kerr effect, indicating that magnetic reversal in the Co bulk and at the Mn Co interface is collinear. Assuming a linear relationship between the MSHG asymmetry and the magnetic moment, our results suggest that there is an enhancement of the interface net magnetic moment at the full monolayer regions.

Original language	English
Article number	012401
Journal	Physical Review B : Condensed Matter and Materials Physics
Volume	75
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.75.012401
Publication status	Published - 29 Jan 2007

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10.1103/PhysRevB.75.012401

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abstract = "Magnetization-induced optical second harmonic generation (MSHG) from exchange-biased Mn Co thin films shows monolayer period oscillations at the Mn Co interface as a function of Co thickness. Similar oscillations are found in the exchange bias (HE) and the coercivity (HC) in both the interface sensitive MSHG and the bulk sensitive magneto-optical Kerr effect, indicating that magnetic reversal in the Co bulk and at the Mn Co interface is collinear. Assuming a linear relationship between the MSHG asymmetry and the magnetic moment, our results suggest that there is an enhancement of the interface net magnetic moment at the full monolayer regions.",

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AU - Valev, V. K.

AU - Kirilyuk, A.

AU - Dalla Longa, F.

AU - Kohlhepp, J. T.

AU - Koopmans, B.

AU - Rasing, Th

PY - 2007/1/29

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N2 - Magnetization-induced optical second harmonic generation (MSHG) from exchange-biased Mn Co thin films shows monolayer period oscillations at the Mn Co interface as a function of Co thickness. Similar oscillations are found in the exchange bias (HE) and the coercivity (HC) in both the interface sensitive MSHG and the bulk sensitive magneto-optical Kerr effect, indicating that magnetic reversal in the Co bulk and at the Mn Co interface is collinear. Assuming a linear relationship between the MSHG asymmetry and the magnetic moment, our results suggest that there is an enhancement of the interface net magnetic moment at the full monolayer regions.

AB - Magnetization-induced optical second harmonic generation (MSHG) from exchange-biased Mn Co thin films shows monolayer period oscillations at the Mn Co interface as a function of Co thickness. Similar oscillations are found in the exchange bias (HE) and the coercivity (HC) in both the interface sensitive MSHG and the bulk sensitive magneto-optical Kerr effect, indicating that magnetic reversal in the Co bulk and at the Mn Co interface is collinear. Assuming a linear relationship between the MSHG asymmetry and the magnetic moment, our results suggest that there is an enhancement of the interface net magnetic moment at the full monolayer regions.

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Observation of periodic oscillations in magnetization-induced second harmonic generation at the Mn Co interface

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