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PARAMAGNON CONTRIBUTION TO NUCLEAR SPIN RELAXATION IN NEARLY MAGNETIC FERMI SYSTEMS.

P. J. Hirschfeld, D. L. Stein

Published Jan 1, 1984• 0 citations
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International Journal of Modern Physics B•Nov 30, 2004•0 citations
The strong scattering limit of the magnetic field dependence of the local phonon-assisted nuclear spin relaxation rate, (NSRR), in two dimensional electron systems, (2DES) with magnetic impurities is calculated. It is shown that the NSRR can be tuned resonantly, by external magnetic field, due to the possibility of matching the electron Zeeman splitting with the energy spacing between the localized vibrational modes created by the lattice distortion around the impurity. This new resonance phenomenon could be used to manipulate, with high precision, the relaxation and decoherence times of nuclear spin based quantum information processing devices.