Title :
Gyrotropic paramagnetic properties of Fe3+ ions in a high-Q Whispering gallery mode sapphire resonator
Author :
Benmessai, Karim ; Tobar, Michael ; Bazin, Nicholas ; Bourgeois, Pierre-Yves ; Kersalé, Yann ; Giordano, Vincent
Author_Institution :
Sch. of Phys., Univ. of Western Australia, Crawley, WA, Australia
Abstract :
We report observations of the gyrotropic change in magnetic susceptibility of the Fe3+ electron paramagnetic resonance at 12.037GHz (between spin states |1/2〉 and |3/2〉) in sapphire with respect to applied magnetic field. Measurements were made by observing the response of the high-Q Whispering Gallery doublet (WGH±17,0,0) in a Hemex sapphire resonator cooled to 5 K. The doublets initially existed as standing waves at zero field and were transformed to traveling waves due to the gyrotropic response.
Keywords :
crystal resonators; iron; magnetic fields; magnetic susceptibility; paramagnetic materials; sapphire; whispering gallery modes; Fe; Hemex sapphire resonator; frequency 12.037 GHz; gyrotropic paramagnetic properties; gyrotropic response; high-Q whispering gallery mode sapphire resonator; magnetic field; magnetic susceptibility; Crystals; Frequency measurement; Magnetic field measurement; Magnetic fields; Permeability; Polarization; Resonant frequency;
Conference_Titel :
Frequency Control Symposium (FCS), 2010 IEEE International
Conference_Location :
Newport Beach, CA
Print_ISBN :
978-1-4244-6399-2
DOI :
10.1109/FREQ.2010.5556175
