Maurice Eisenstadt
Physical Review
Measurements of T1 and T2, the spin-lattice and spin-spin relaxation times, are reported for Na23 and Cl35 nuclei in NaCl from room temperature to the melting point. For single-crystal samples below 700°K, T1 is due to quadrupolar interactions of the nuclei with lattice vibrations and diffusing vacancies, and T2 arises from the dipolar interaction between nuclei. A jump frequency for positive ion vacancy motion of 4×107 sec-1 at 510°K is obtained, in good agreement with conductivity measurements. At higher temperatures a number of anomalous features appear and possible explanations are discussed. © 1964 The American Physical Society.
Maurice Eisenstadt
Physical Review
Cyril M. Harris, Maurice Eisenstadt, et al.
Journal of the Acoustical Society of America
Maurice Eisenstadt, Harold L. Friedman
The Journal of Chemical Physics