Аннотации:
Present paper is the result of experimental investigations of the system "Van Vleck paramagnet PrF3 - liquid 3He", where earlier cross-relaxation effect between liquid 3He nuclei and 141Pr nuclei was discovered. We report on 141Pr spin kinetics in Van Vleck paramagnet crystal powders PrF3 with different paramagnet impurities. All experiments have been made by pulse NMR methods at temperature 1.5 K. © 2009 IOP Publishing Ltd.