Nuclear spin-lattice relaxation of light impurities in platinum studied by using polarized unstable nuclear beams
2010
Abstract The spin lattice-relaxation rates of short-lived unstable nuclei Al 25 and P 28 in Pt has been measured by means of the β -NMR technique, in order to study the electronic structure of dilute impurities in Pt. From the obtained spin-lattice relaxation rates, Knight shifts K c were estimated to be K c [ Al in Pt ] = ( 0.45 ± 0.09 ) × 10 − 3 and K c [ P in Pt ] = ( 4 − 4 + 2 ) × 10 − 3 using the Korringa relation. These values were evaluated by comparing to the first principle calculations.
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