Direct observation of structural changes near and at the charge-ordering temperature of ilvaite using high-flux neutron powder diffraction
Direct observation of structural changes near and at the charge-ordering temperature of ilvaite using high-flux neutron powder diffraction
复制标题
使用高通量中子粉末衍射直接观察钙钛矿电荷排序温度附近和该温度下的结构变化
DOI:
10.1039/c4tc00224e
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Williams E
中科院分区:
文献类型:
--
作者:
Williams E
The detailed structural changes that occur during and following the formation of a long-range, charge-ordered state have been accurately and rapidly determined. The localisation of the electron in ilvaite, Ca(Fe,Mn)3Si2O8(OH), forming Fe2+ and Fe3+ from the delocalized 2× Fe2.5+, is directly apparent in bond valence sums derived from accurately determined Fe–O distances extracted from neutron powder diffraction data obtained for 40 temperatures around the charge ordering temperature in just a few hours. Subtle changes that occur in the structure and lattice parameters after the formation of the charge-ordered state are also apparent for the first time from this work.
登录
查看更多内容
影响因子:
2.7
作者:
F. Damay;C. Martin;M. Hervieu;A. Maignan;B. Raveau;G. André;F. Bourée
通讯作者:
F. Damay;C. Martin;M. Hervieu;A. Maignan;B. Raveau;G. André;F. Bourée
DOI:
--
发表时间:
1979
期刊:
影响因子:
--
作者:
D. Nolet;R. Burns
通讯作者:
R. Burns
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
Y. Takéuchi;,. N. Haga;M. Bunno
通讯作者:
M. Bunno
DOI:
10.1107/s0108767384089327
发表时间:
1984
期刊:
Acta Crystallographica Section A
影响因子:
--
作者:
A. Hewat;S. Heathman
通讯作者:
S. Heathman
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
L. Finger;R. Hazen
通讯作者:
R. Hazen