Nuclear Relaxation Time of Solid3He

Probing the Nuclear Spin-Lattice Relaxation Time at the Nanoscale

J. J. T. Wagenaar, A. M. J. den Haan, J. M. de Voogd, L. Bossoni, T. A. de Jong, M. de Wit, K. M. Bastiaans, D. J. Thoen, A. Endo, T. M. Klapwijk, J. Zaanen, and T. H. Oosterkamp Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands Kavli Institute of Nanoscience, Faculty of Applied Sciences, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, T...

Nuclear Magnetic Relaxation

All-optical measurement of nuclear-spin relaxation

Nuclear-spin relaxation rates are usually measured by pulsed radio frequency excitation of nuclear-spin transitions. When the number of spins is too small for direct detection with conventional nuclear-magneticresonance spectrometers, pulsed excitation may be combined with optical detection of the nuclear spins for increased sensitivity. Here we demonstrate that such measurements can also be do...

Nuclear Spin Relaxation of Polycrystalline Xenon

Through spin exchange optical pumping it is possible to achieve upwards of nuclear spin polarization in Xe with an NMR signal enhancement of some orders of magnitude over typical thermal signals Hyperpolarized Xe has thus found application in several leading edge technologies At T and K the characteristic relaxation time of enriched polycrystalline Xe Xe Xe is well over hrs su cient for long te...

Surface nuclear spin relaxation of 199Hg.

We report the results of a detailed study of surface relaxation of 199Hg nuclear spins in paraffin coated cells. From measurements of the magnetic field and temperature dependence of the spin relaxation rates we determine the correlation time for magnetic fluctuations and the surface adsorption energy. The data indicate that surface relaxation is caused by dipolar coupling to paramagnetic sites...