ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
The temperature dependence of the atomic thermal motion in lead has been studied by analysis of diffraction measurements with 0.535 and 0.844 Å neutrons. Full single-crystal data sets were collected at ten temperatures ranging from 100 K to the vicinity of the melting point at 600 K. The data were interpreted in the anharmonic one-particle-potential formalism. Significant values for both isotropic and anisotropic quartic-anharmonic potential parameters were obtained, but a single temperature-independent one- particle potential was found sufficient to describe the temperature dependence of the atomic temperature factor only above 4̃θM, where θM is the Debye temperature.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108767384000283
