J Purans et al 2009 J. Phys.: Conf. Ser. 190 012063 doi:10.1088/1742-6596/190/1/012063
J Purans1, J Timoshenko1, A Kuzmin1, G Dalba2, P Fornasini2, R Grisenti2, N D Afify2, F Rocca3, S De Panfilis4,5, I Ozhogin6 and S I Tiutiunnikov7
Show affiliationsThe analysis of the EXAFS signals from 70Ge and 76Ge has evidenced the low-temperature effect of isotopic mass difference on the amplitude of relative atomic vibrations. This effect is reflected in the difference of the Debye-Waller factors of the first three coordination shells, and on the difference of nearest-neighbour average interatomic distances, evaluated with femtometer accuracy. The experimental results are in agreement with theoretical expectations.
78.70.Dm X-ray absorption spectra
65.40.De Thermal expansion; thermomechanical effects
63.70.+h Statistical mechanics of lattice vibrations and displacive phase transitions
Issue 1 (2009)
J Purans et al 2009 J. Phys.: Conf. Ser. 190 012063
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