Thermal Detection of Nuclear Spin-Symmetry Conversion of Tunneling Methyl Groups
- 18 November 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 33 (21) , 1257-1259
- https://doi.org/10.1103/physrevlett.33.1257
Abstract
Nonequilibrium populations of proton spin-symmetry species of methyl groups undergoing tunneling rotation occur in a sample which has been thermally quenched to helium temperatures. When the external magnetic field is adjusted to bring the Larmor frequency of impurity electrons into coincidence with the methyl-group tunneling frequency, cross relaxation releases the stored mechanical energy of tunneling rotation to heat the sample.Keywords
This publication has 3 references indexed in Scilit:
- Nuclear-Spin-Symmetry Conversion of Tunneling Methyl GroupsPhysical Review Letters, 1973
- Tunneling Resonances in Proton Spin-Lattice RelaxationPhysical Review Letters, 1973
- Conversion of Spin Species in Solid Cthrough Level Crossing with Paramagnetic ImpuritiesPhysical Review Letters, 1972