Faraday rotation and sensitivity of (100) bismuth-substituted ferrite garnet films

Details Faraday rotation and sensitivity of (100) bismuth-substituted ferrite garnet films Faraday rotation and sensitivity of (100) bismuth-substituted ferrite garnet films

2002-02-17

arxiv.org/abs/cond-mat/0202281v1

Physics

Condensed Matter

Materials Science

17 pages, 8 figures. Submitted to PRB

Scientific paper

10.1103/PhysRevB.66.064405

We have investigated the Faraday rotation of in-plane magnetized bismuth - substituted ferrite garnet films grown by liquid phase epitaxy on (100) oriented gadolinium gallium garnet substrates. The Faraday spectra were measured for photon energies between 1.7 - 2.6 eV. To interprete the spectra, we use a model based on two electric dipole transitions, one tetrahedral and one octahedral. Furthermore, the Faraday rotation sensitivity was measured at 2.3 eV, and found to be in good agreement with the theoretical predicitions. In particular, we find that the sensitivity increases linearly with the bismuth content and nonlinearly with the gallium content.

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