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Liquid phase epitaxy (LPE) grown Bi, Ga, Al substituted iron garnets with huge Faraday rotation for magneto-optic applications

2004; Wiley; Volume: 201; Issue: 7 Linguagem: Inglês

10.1002/pssa.200304410

1521-396X

P. G�rnert, Thomas Aichele, Andreas Lorenz, R. Hergt, J. Taubert,

Theoretical and Computational Physics

High quality BiYIG layers can be grown on GGG and above all GGCMZ substrates by standard LPE for magneto-optic applications. The misfit stress in growing BiYIG layers with high Bi content leads to the development of morphological instabilities, which were avoided by use of lattice-matched GGCMZ substrates. Optimisation of flux melt composition and undercooling results in a Bi content up to 1.8 f.u. and a specific magneto-optical sensitivity of 0.085°/mT μm – saturation induction 54 mT; wavelength 633 nm. BiYIG layers are suitable for the imaging of magnetic structures. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)