Community Research and Development Information Service - CORDIS


The difference in lattice parameters between germanium crystals of natural isotopic composition and an isotopically enriched crystal of 74Ge was calculated and measured using a double-beam triple-axis x-ray spectrometer. The measured relative fractional difference was (-6.3 + - 0.3) x 1.0 E-6 and (-14.9 + - 0.3) x 1.0 E-6 at room and liquid-nitrogen temperatures, respectively. The corresponding calculated values are -6 x 1.0 E-6 and -12 x 1.0 E-6. The agreement is very good, given uncertainties in the values of physical constants used for the theoretical calculations.

Additional information

Authors: BUSCHERT R C, Turner Lab., Goshen College, Goshen, Indiana 46526 (US)
Bibliographic Reference: Article: Physical Review B, Vol.38(1988), No.8, pp.5219-5221
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top