Abstract
We introduce a novel magnetic resonance experiment in which nuclear quadrupole resonance (NQR) is observed following excitation at 1/2 the resonant frequency. Such two-photon excitation has recently been demonstrated in nuclear magnetic resonance, and may also have practical application to NQR. We show analytically that for axially symmetric quadrupole interactions ( η=0), two-photon NQR in zero magnetic field produces observable magnetization only perpendicular to the rf excitation coil, necessitating a second coil for detection. If η≠0 or an external magnetic field is applied, magnetization observable in the excitation coil is produced. We demonstrate the phenomenon experimentally by exciting the 35Cl resonance in a single crystal of sodium chlorate in the presence of a weak magnetic field.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
