Abstract
We show an example of a purely magnetic spin resonance in and the resulting new record high Faraday rotation of at 1.6 T for 1 cm wavelengths probed by a novel technique of magneto-optical gigahertz time-domain ellipsometry. From our transmission measurements of linear polarized light, we map out the complex index of refraction in the gigahertz to terahertz range. We observe a strong resonant absorption by magnetic dipole transitions involving the Zeeman split magnetic energy levels of the ions, which causes a very large dichroism for circular polarized radiation.
- Received 3 March 2011
DOI:https://doi.org/10.1103/PhysRevLett.106.217601
© 2011 American Physical Society