Автор |
A R Lim |
Автор |
S H Choh |
Автор |
M S Jang |
Дата выпуска |
1992-02-10 |
dc.description |
Nuclear magnetic resonance spectra of <sup>209</sup>Bi(I=9/2) in the ferroelastic BiVO<sub>4</sub> single crystal has been investigated by employing a wide-line Varian spectrometer. Only three lines due to a large quadrupole interaction were measured at a fixed frequency of 6 MHz in the principal planes at room temperature. From the experimental data the quadrupole coupling constant E<sup>2</sup>qQ/h=79.2+or-0.1 MHz and asymmetry parameter eta =0.70+or-0.01 are determined; however, these values turn out to be quite different from the previous report obtained with a ceramic sample at liquid-nitrogen temperature. The principal axes of the electric field gradient tensor are determined for the first time, the x, y and z axes being the crystallographic c+25 degrees , a+25 degrees , and b axes, respectively. Thes directions are discussed in terms of the Bi-O bonds in the Bi-O polyhedra. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Nuclear magnetic resonance of <sup>209</sup>Bi in a BiVO<sub>4</sub> single crystal |
Тип |
paper |
DOI |
10.1088/0953-8984/4/6/026 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
4 |
Первая страница |
1607 |
Последняя страница |
1613 |
Аффилиация |
A R Lim; Dept. of Phys., Korea Univ., Seoul, South Korea |
Аффилиация |
S H Choh; Dept. of Phys., Korea Univ., Seoul, South Korea |
Аффилиация |
M S Jang; Dept. of Phys., Korea Univ., Seoul, South Korea |
Выпуск |
6 |