Автор |
Kristin Kirschbaum |
Автор |
Anthony Martin |
Автор |
Damon A Parrish |
Автор |
A Alan Pinkerton |
Дата выпуска |
1999-06-14 |
dc.description |
The rare earth vanadate TbVO<sub>4</sub>, undergoes a crystallographic phase transition below 33 K induced by a cooperative Jahn-Teller effect. Twinning of the crystal occurs upon this transition from the tetragonal high temperature phase to the orthorhombic low temperature phase resulting in a domain structure. Single crystal x-ray analyses of the tetragonal and the twinned orthorhombic phase verify a reduction in the site symmetry of the Tb ion from D<sub>2d</sub> (m2-dodecahedral) for the high temperature phase to D<sub>2</sub> (222-distorted dodecahedral) for the low temperature phase. Concomitantly, the space group symmetry is lowered from D<sup>19</sup><sub>4h</sub> (I4<sub>1</sub>/amd) to D<sup>24</sup><sub>2h</sub> (Fddd). The twinned orthorhombic phase is described as domains related to each other by a 180° rotation about the orthorhombic [110] axis. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Cooperative Jahn-Teller induced phase transition of TbVO<sub>4</sub>: single crystal structure analyses of the tetragonal high temperature phase and the twinned orthorhombic phase below 33 K |
Тип |
paper |
DOI |
10.1088/0953-8984/11/23/302 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
11 |
Первая страница |
4483 |
Последняя страница |
4490 |
Аффилиация |
Kristin Kirschbaum; 2801 W Bancroft Street, Department of Chemistry, University of Toledo, Toledo, OH 43606, USA |
Аффилиация |
Anthony Martin; 2801 W Bancroft Street, Department of Chemistry, University of Toledo, Toledo, OH 43606, USA |
Аффилиация |
Damon A Parrish; 2801 W Bancroft Street, Department of Chemistry, University of Toledo, Toledo, OH 43606, USA |
Аффилиация |
A Alan Pinkerton; 2801 W Bancroft Street, Department of Chemistry, University of Toledo, Toledo, OH 43606, USA |
Выпуск |
23 |