2.1.1 Relationships between the anisotropic displacement
parameters
This is an archive copy of the IUCr web site dating from 2008. For current content please visit
https://www.iucr.org.
Next: 2.1.2 Construction of Cartesian mean-square displacement tensors
Up: 2.1 Anisotropic displacement parameters
Previous: 2.1 Anisotropic displacement parameters
The displacement parameters , , and ,
given by eqs. (2.1.22), (2.1.25), and
(2.1.26), are so closely related that the use of all of
them in the crystallographic literature is not only
unnecessary, but conducive to confusion. The
relationships needed are shown in a single equation, obtained by comparison of
eqs. (2.1.21), (2.1.24) and (2.1.27):
It is true
that fewer arithmetic operations are needed to compute T from
than from , but with the advent of computers this
advantage has become negligible.
Next: 2.1.2 Construction of Cartesian mean-square displacement tensors
Up: 2.1 Anisotropic displacement parameters
Previous: 2.1 Anisotropic displacement parameters
ADP Report Webmaster
Back to Table of Contents