Abstract
Spatially resolved 19F and 7Li nuclear magnetic resonance (NMR) spin–lattice relaxation rates have beenmeasured in LiF crystals irradiated with 1.44 GeV Xe ions at fluences from1010 to1012 ions cm−2. In addition, the F-centre concentration has been measured by optical absorptionspectroscopy and the concentration of paramagnetic centres by electron paramagneticresonance (EPR). Within the ion range, the relaxation rate turns out to increase linearlywith the concentration of paramagnetic centres but super-linearly with the F-centreconcentration. Beyond the ion range, the relaxation rate is still significantly enhancedcompared to non-irradiated LiF.
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Schedule a callMore From: Journal of physics. Condensed matter : an Institute of Physics journal
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