Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| DOI | http://dx.doi.org/10.1016/S0022-4596(03)00024-0 |
| Title | Rigid unit modes (RUMs) of distortion, local crystal chemistry and the inherent displacive flexibility of microporous AlPO{sub 4}-11 |
| Creator/Author | Liu Yun ; Withers, Ray L. E-mail: withers@rsc.anu.edu.au |
| Publication Date | 2003 May 01 |
| OSTI Identifier | OSTI ID: 20417582 |
| Other Number(s) | ISSN 0022-4596; JSSCBI ; TRN: US03S1497002311 |
| Resource Type | Journal Article |
| Resource Relation | Journal of Solid State Chemistry ; VOL. 172 ; ISSUE: 2 ; PII: S0022459603000240; Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); PBD: May 2003 |
| Subject | 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; ALUMINIUM PHOSPHATES; COMPUTER CODES; CRYSTAL STRUCTURE; ELECTRON DIFFRACTION; PORE STRUCTURE; POROUS MATERIALS |
| Description/Abstract | Electron diffraction is used to investigate the average structure of microporous AlPO{sub 4}-11 as well as the zero-frequency rigid unit mode (RUM) modes of distortion of the ideal AlPO{sub 4}-11 tetrahedral framework. Direct experimental evidence (in the form of a highly structured, characteristic diffuse intensity distribution) has been found for the (presumably dynamic) excitation of numerous zero-frequency RUM modes of distortion. The lattice dynamic program CRUSH is used to confirm the existence of zero-frequency RUM modes of distortion with wave-vectors falling on the observed diffuse distribution. The simultaneous (presumably dynamic) excitation of such RUM modes of distortion needs to be taken into account in order for the local crystal chemistry of AlPO 4-11 to be understood. |
| Country of Publication | United States |
| Language | English |
| Format | page(s) 431-437 |
| System Entry Date | 2004 Feb 02 |
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Last Updated: 02/16/2009