Nuclear orientation and nuclear spin-lattice relaxation in insulating magnetically ordered crystals |
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| Authors: | M Le Gros A Kotlicki B G Turrell |
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| Institution: | (1) Department of Physics, University of British Columbia, V6T 2A6 Vancouver, B.C., Canada;(2) Present address: Institute of Experimental Physics, Warsaw University, Hoza 69, 00-681 Warsaw, Poland |
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| Abstract: | The mechanism of nuclear spin-lattice relaxation in insulating magnetically ordered crystals at low temperatures is discussed.
In 3-dimensional systems the relaxation time T1 is long, but in the lower dimensional systems it can be quite short making them possible candidates for hosts in on-line
experiments. An experiment in 2-dimensional54Mn−Mn (COOCH3)2·4H2O is discussed with particular reference to the relatively short value of T1 in low applied fields. A preliminary experiment in the 1-dimensional system54Mn−(CH3)4NMnCl3 (TMMC) is also described. Pulsed NMRON measurements in54Mn−MnCl2·4H2O are outlined and the advant-systems with fast relaxation emphasized. |
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