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Negative isotope effect of the lattice resonant modes in Li+-doped KCl crystals

G K Pandey, D K Shukla and A Pandey

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It has been shown that the anomalous experimental results of the negative isotope effect in the lattice resonant-mode absorption of KCl-Li+ systems can be understood in terms of the static quartic anharmonic effects and the dynamical coupling of the impurity motion to the phonons of the host crystal matrix.


PACS

63.20.Ry Anharmonic lattice modes

61.72.up Other materials

Subjects

Condensed matter: structural, mechanical & thermal

Dates

Issue 7 (7 April 1974)



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