= Atomic displacement parameter nomenclature (IUCr report)
{c}
https://www.iucr.org/who-we-are/commissions/commission-on-crystallographic-nomenclature/published-reports/adp
IUCr Commission on Crystallographic Nomenclature report, accepted2May1996. Section2.3.1 describes constant-probability ellipsoids of a trivariate Gaussian displacement distribution and their relation to the mean-square displacement matrix; negative eigenvalues invalidate that physical ellipsoid interpretation.
Back to article page
