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NMR and NQR Properties of Liquid In
Author(s) -
Halder N. C.
Publication year - 1973
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220570228
Subject(s) - knight shift , pseudopotential , condensed matter physics , physics , polarization (electrochemistry) , relaxation (psychology) , materials science , chemistry , atomic physics , nuclear magnetic resonance , superconductivity , psychology , social psychology
The pseudopotential method in the theory of liquid metals and the experimental atomic interference functions have been used to investigate the temperature dependence of the Knight shift K s and nuclear spin relaxation rate 1/ T 1 in liquid In. From this study, a value for the uniform exchange enhancement factor η s emp= 1.65 has been predicted which agrees well with that estimated by Dupree and Seymour η s DS= 1.58. With this η s emp , K s theohave been determined which are found to be in good agreement with the experimental data of Warren and Clark. These results seem to suggest that the core polarization contribution to K s could be 25% of the direct shift and the exchange enhancement could be as large as 39% of K s theo . From the present study the magnetic and quadrupolar contributions to T l turn out to be T 1 m = 0.538ms and T 1 q = 0.960 ms, respectively, at 170°C.