Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/7700
Title: Structural origin of the anisotropic thermal expansion of a K2NiF4-type oxide CaErAlO4 through interatomic distances
Authors: Omoto, K
Yashima, M
Hester, JR
Keywords: ANISOTROPY
THERMAL EXPANSION
NEUTRON DIFFRACTION
MOLECULAR STRUCTURE
PEROVSKITES
BONDING
Issue Date: 11-Dec-2013
Publisher: Chemistry Letters
Citation: Omoto, K., Yashima, M., & Hester, J. R. (2014). Structural Origin of the Anisotropic Thermal Expansion of a K2NiF4-type Oxide CaErAlO4 through Interatomic Distances. Chemistry Letters, 43(4), 515-517 doi: http://doi.org/10.1246/cl.131164
Abstract: The anisotropic thermal expansion and crystal structure of K2NiF4-type CaErAlO4 have been investigated by neutron diffraction from 298 to 1473 K. The average thermal expansion coefficient (TEC) along the c axis αc is larger than that along the a axis, mainly due to the larger Al–(apical oxygen O2) TEC compared to the Al–(equatorial O1) TEC. The larger Al–O2 TEC is attributable to the weaker Al–O2 bond. Contrary to the literature, the mean TEC of K2NiF4-type CaErAlO4 is larger than that of perovskite-type ErAlO3.
Gov't Doc #: 7262
URI: http://doi.org/10.1246/cl.131164
http://apo.ansto.gov.au/dspace/handle/10238/7700
Appears in Collections:Journal Articles

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.