Thermal motion in sodium nitrite : The temperature dependence of debye-waller factors
Ferroelectrics Volume 269
Page 321-326
published_at 2002
Title
Thermal motion in sodium nitrite : The temperature dependence of debye-waller factors
Creator Keywords
Debye-Waller Factor
Order-disorder
displacive Type
Sodium Nitrite
Structure Analysis
Least Squares Calculation
Maximum Entropy Method
In order to understand the relation between the transition mechanism and the thermal vibration, the temperature dependence of the Debye-Waller factor is investigated in NaNO_2 by single-crystal X-ray diffractometry. The crystal parameters are refined by least squares calculations both in paraelectric and ferroelectric phases. The maximum entropy method is also employed to estimate the spontaneous polarization. The Debye-Waller factor displays a minor anomaly at the order-disorder transition point. The result is compared with K_2SeO_4, a typical displacive crystal.
Languages
eng
Resource Type
journal article
Publishers
Taylor and Francis
Date Issued
2002
File Version
Author’s Original
Access Rights
open access
Relations
[ISSN]0015-0193
[NCID]AA00644949
[isVersionOf]
[URI]http://www.tandf.co.uk/journals/titles/00150193.asp
Schools
大学院理工学研究科（理学）