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Nuclear magnetic resonance in liquid InGa alloys
Author(s) -
Ploumbidis D.,
Böss E.
Publication year - 1981
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.2221070123
Subject(s) - knight shift , atmospheric temperature range , range (aeronautics) , materials science , temperature coefficient , function (biology) , isotope , condensed matter physics , analytical chemistry (journal) , thermodynamics , nuclear magnetic resonance , chemistry , physics , nuclear physics , superconductivity , chromatography , evolutionary biology , biology , composite material
Measurements of the Knight shift of 115 In and 71 Ga in liquid InGa bulk samples are carried out as a function of temperature from 263 to 523 K and concentration from 0 to 100 at% Ga. It is shown that bulk and particle samples give, within the experimental error, the same Knight shift values. The results are compared with contradictory experimental data in the literature, and it is found that they agree with those of one of the earlier authors. A further important result based on these measurements extended over a broad temperature range is the determination of the temperature coefficient of the Knight shift of both isotopes 115 In and 71 Ga as a function of concentration. The 115 In temperature coefficient decreases with increasing Ga concentration whereas the 71 Ga one remains almost constant over the entire concentration range. Comparisons between the experimental and the theoretical results show satisfactory agreement in some cases but strong discrepancies in others.