S. Aripin,"mitsudo et al., Submillimeter wave ESR measurement for Cr3+ in ruby crystal using a gyrotron as a radiation source, INT J INFRA, 20(11), 1999, pp. 1875-1888
Citations number
12
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES
Fine structure constant of ruby has been measured using an ESR spectrometer
with a pulse magnetic for high fields and a gyrotron as a radiation source
in a millimeter to submillimeter wave range. The measurement was carried o
ut at room temperature. The Zeeman energy in this frequency range is large
enough compared with the fine structure constant, The higher order term in
the effective spin Hamiltonian can explain the dependence of fine structure
constant on the frequency, The observed fine structure constants depend on
the field intensity.