TY - JOUR
T1 - Spin resonance in EuTiO3 probed by time-domain gigahertz ellipsometry
AU - van Mechelen, J.L.M.
AU - van der Marel, D.
AU - Crassee, I.
AU - Kolodiazhnyi, T.
PY - 2011/5/25
Y1 - 2011/5/25
N2 - We show an example of a purely magnetic spin resonance in EuTiO3 and the resulting new record high Faraday rotation of 590°/mm 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 n=μ in the gigahertz to terahertz range. We observe a strong resonant absorption by magnetic dipole transitions involving the Zeeman split S=7/2 magnetic energy levels of the Eu2+ ions, which causes a very large dichroism for circular polarized radiation.
AB - We show an example of a purely magnetic spin resonance in EuTiO3 and the resulting new record high Faraday rotation of 590°/mm 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 n=μ in the gigahertz to terahertz range. We observe a strong resonant absorption by magnetic dipole transitions involving the Zeeman split S=7/2 magnetic energy levels of the Eu2+ ions, which causes a very large dichroism for circular polarized radiation.
UR - http://www.scopus.com/inward/record.url?scp=79960644415&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.106.217601
DO - 10.1103/PhysRevLett.106.217601
M3 - Article
AN - SCOPUS:79960644415
SN - 0031-9007
VL - 106
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
M1 - 217601
ER -