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Calculation of nuclear quadrupolar relaxation in liquid metals
Author(s) -
Halder N. C.
Publication year - 1977
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.2220800131
Subject(s) - relaxation (psychology) , range (aeronautics) , interference (communication) , limit (mathematics) , function (biology) , chemistry , thermodynamics , diffusion , zero (linguistics) , condensed matter physics , atomic physics , physics , nuclear magnetic resonance , analytical chemistry (journal) , materials science , mathematics , mathematical analysis , psychology , channel (broadcasting) , chromatography , evolutionary biology , electrical engineering , composite material , biology , engineering , linguistics , philosophy , social psychology
The nuclear quadrupolar relaxation (NQR) rate W 1q in liquid metals, in 69 Ga, 115 In and 201 Hg is calculated by using the Warren theory. In order to do this, the experimental static interference function I ( K ) is considered and the dynamic interference function I ( K , 0) is generated in the zero frequency limit. W 1q is calculated in the temperature range 20 to 150 °C for 69 Ga, 170 to 650 °C for 115 In, and ‐‐‐35 to 80 °C for 201 Hg. It is found that in all the three cases, the temperature dependence of the calculated W 1q is in very good agreement with that of the experimenta W 1q , but numerically the magnitudes of W 1q for 115 In and 201 Hg deviate considerably from the experimental values. It is concluded that the antishielding factors used may be in error and that the present theory is superior to the earlier classical diffusion theory.