Автор |
Tae Ho Yeom |
Автор |
Sung Ho Choh |
Автор |
Kyu Jeong Song |
Автор |
Min Su Jang |
Дата выпуска |
1994-01-10 |
dc.description |
The domain structure of the ferroelastic BiVO<sub>4</sub> single crystal has been investigated using the nuclear magnetic resonance (NMR) of <sup>51</sup>V and by the electron paramagnetic resonance (EPR) of the Mn<sup>2+</sup> ions contained in the crystal as an impurity. The 14 resonance lines of <sup>51</sup>V (I=<sup>7</sup>/<sub>2</sub>) in a BiVO<sub>4</sub> crystal with the twin domain were measured in the crystallographic a-b (or c-b) and c-a (or a-c) planes with an FT NMR spectrometer. Two sets of Mn<sup>2</sup>+ EPR signals were also obtained in the c-a plane. These two sets of NMR and EPR signals originate from the twin-domain structure. From these two sets of experimental data from <sup>51</sup>V NMR and Mn<sup>2+</sup> EPR, it is confirmed that the BiVO<sub>4</sub> single crystal has the prominent (W-plane) domain wall reported previously. The investigated domain structure is found to be stable with time in contrast with a previous report by Baran et al. The previous model of the twinning mechanism derived from NMR and X-ray diffraction data has been improved by employing the EPR results. The observed W plane of the domain wall in BiVO<sub>4</sub> can be explained by the ferroelastic species 4/mmm F 2/m instead of 4/m F 2/m. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
The domain structure of ferroelastic BiVO<sub>4</sub> studied by magnetic resonances |
Тип |
paper |
DOI |
10.1088/0953-8984/6/2/010 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
6 |
Первая страница |
383 |
Последняя страница |
392 |
Аффилиация |
Tae Ho Yeom; Dept. of Phys., Korea Univ., Seoul, South Korea |
Аффилиация |
Sung Ho Choh; Dept. of Phys., Korea Univ., Seoul, South Korea |
Аффилиация |
Kyu Jeong Song; Dept. of Phys., Korea Univ., Seoul, South Korea |
Аффилиация |
Min Su Jang; Dept. of Phys., Korea Univ., Seoul, South Korea |
Выпуск |
2 |