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Condensed Matter Seminars

ics Condensed Matter
Thursday, October 18, 2001
4:00 PM
Physics Building, Room 204
Note special time.
Note special room.
Arthur Brill [Host: D. Louca]
University of Virginia
"Electron-nuclear double resonance-mediated dynamic nuclear polarization"
Because electronic magnetic moments are orders of magnitude greater than nuclear magnetic moments, for a given magnetic field strength and temperature, electronic paramagnetism far exceeds nuclear paramagnetism. The sensitivities of certain measurements in many branches of physics and chemistry depend upon the extent of nuclear spin polarization. Dynamic nuclear polarization (DNP) processes enable experimenters to transfer electron spin polarization to nuclear spin systems. In this seminar a newly-proposed method, with the potential for achieving as great as 50% polarization of protons and deuterons in much less time and with much lower microwave power than the DNP methods in current use, will be described.

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