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Abstract : The nuclear spin-lattice relaxation times for 119Sn and 117Sn have been measured in the temperature range between 20 and 50 mK with a SQUID magnetometer by watching the recovery of the longitudinal magnetization of the nulear spins after the application of an rf-pulse. The temperature was determined using a SQUID noise thermometer. The Korringa constants were estimated from the τ1-values. Application of the method for thermometry is discussed.





Autor: H. Ahola G.J. Ehnholm S.T. Islander B. Rantala

Fuente: https://hal.archives-ouvertes.fr/



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