Nuclear Magnetic Relaxation in NaCl at High Temperatures
pin relaxation times, are reported for Na/sup 23/ and Cl/sup 35/ nuclei in NaCl from room temperature to the melting point. For single-crystal samples below 700 deg K, T/sub 1/ is due to quadrupolar interactions of the nuclei with lattice vibrations and diffusing vacancies, and T/sub 2/ arises from the dipolar interaction between nuclei. A jump frequency for positive ion vacancy motion of 4 x 10/sup 7/ sec/sup -1/ at 510 deg K is obtained, in good agreement with conductivity measurements. At higher emperatures a number of anomalous features appear and possible explanations are discussed.
- Research Organization:
- Columbia., New York
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-005293
- OSTI ID:
- 4132643
- Journal Information:
- Physical Review, Journal Name: Physical Review Journal Issue: 1A Vol. 133; ISSN PHRVAO; ISSN 0031-899X
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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