Abstract
We report observations of the gyrotropic change in magnetic susceptibility of the Fe3+ electron paramagnetic resonance at 12.037 GHz (between spin states |1/2⟩ and |3/2⟩) in sapphire with respect to the applied magnetic field. Measurements were made by observing the response of the high-Q whispering gallery doublet 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.
Original language | English |
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Pages (from-to) | Article number 174432, 8pp |
Journal | Physical Review B |
Volume | 79 |
Issue number | 17 |
DOIs | |
Publication status | Published - 2009 |