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

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

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 languageEnglish
Article number012401
JournalPhysical Review B : Condensed Matter and Materials Physics
Volume75
Issue number1
DOIs
Publication statusPublished - 29 Jan 2007

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