Title :
Observation of coherent spin precession in YFeO3 crystal triggered with magnetic component of terahertz wave
Author :
Zhou, Runze ; Zuan Ming Jin ; Ma, Guohong ; Cheng, Zhenxiang
Author_Institution :
Dept. of Phys., Shanghai Univ., Shanghai, China
Abstract :
We report the observation of the magnetic dipole transition triggered with magnetic component of terahertz electromagnetic pulse in an antiferromagnetic YFeO3 crystal, which is manifested by a sharp absorption at the frequency of the quasiferromagnetic mode of the crystal. The rotating coherent macroscopic magnetization radiates circularly polarized emission at the frequency of the quasiferromagnetic resonance.
Keywords :
antiferromagnetic materials; birefringence; electromagnetic pulse; ferromagnetic materials; magnetic moments; magnetic transitions; magnetisation; terahertz wave spectra; yttrium compounds; YFeO3; antiferromagnetic crystal; birefringence; circularly polarized emission; coherent spin precession; magnetic component; magnetic dipole transition; quasiferromagnetic mode; quasiferromagnetic resonance; rotating coherent macroscopic magnetization; terahertz electromagnetic pulse; terahertz wave; Absorption; Crystals; Electric fields; Magnetic domains; Magnetic fields; Magnetic resonance; Superconducting magnets;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
