Effect of interface magnetic moments and quantum-well states on magnetization-induced second-harmonic generation

P. van Gelderen; S. Crampin; Th. Rasing; J. E. Inglesfield

doi:10.1103/PhysRevB.54.R2343

Rapid Communication

Effect of interface magnetic moments and quantum-well states on magnetization-induced second-harmonic generation

P. van Gelderen, S. Crampin, Th. Rasing, and J. E. Inglesfield

Phys. Rev. B 54, R2343(R) – Published 15 July 1996

Abstract

We develop a model for magnetization-induced second-harmonic-generation (MSHG) experiments on Co/Cu(001) and Cu/Co(001) overlayers by expanding the nonlinear optical susceptibility to lowest order in the magnetization, and taking the latter to be given by the interfacial moments from ab initio electronic-structure calculations. The model accounts well for the relative MSHG signal from Co/Cu(001), but contrary to experiment predicts a nearly constant signal for Cu/Co(001). We discuss the possibility of quantum-well states accounting for the failure in the latter case.

Received 10 May 1996

DOI:https://doi.org/10.1103/PhysRevB.54.R2343

Authors & Affiliations

P. van Gelderen^*

Research Institute for Materials, University of Nijmegen, Toernooiveld, NL-6525 ED Nijmegen, The Netherlands

S. Crampin

School of Physics, University of Bath, BA2 7AY, United Kingdom

Th. Rasing and J. E. Inglesfield^†

Research Institute for Materials, University of Nijmegen, Toernooiveld, NL-6525 ED Nijmegen, The Netherlands

^*Also at Philips Research Laboratories, Prof. Holstlaan 4, NL-5656 AA Eindhoven, The Netherlands.
^†Present address: Department of Physics and Astronomy, University of Wales, College of Cardiff, P.O. Box 913, Cardiff CF2 3YB, UK.

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Vol. 54, Iss. 4 — 15 July 1996

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