| Автор | T H Yeom |
| Автор | S H Choh |
| Автор | M S Jang |
| Дата выпуска | 1992-01-13 |
| dc.description | The electron paramagnetic resonance (EPR) of an Mn<sup>2+</sup> (S=5/2) impurity in the ferroelastic and para-elastic phase of BiVO<sub>4</sub> crystals with a single domain, grown by the Czochralski method, has been investigated using an X-band spectrometer. The rotation patterns of the resonance fields measured on the crystallographic planes are analysed: g=1.9940+or-0.0009, D/h=2.443+or-0.002, E/h=0.4912+or-0.0009, F/h=0.094+or-0.002, B<sub>4</sub><sup>2</sup>/h=0.0, A<sub>x</sub>/h=0.27+or-0.02, A<sub>y</sub>/h=0.25+or-0.02, and A<sub>z</sub>/h=0.33+or-0.02 GHz at room temperature (<T<sub>c</sub>=528 K); and g=1.994+or-0.001, D/h=0.000+or-0.004, E/h=0.000+or-0.004, F/h=0.00+or-0.01, A/h=0.25+or-0.01 GHz at T=535 K (>T<sub>c</sub>). The principal x, y, and z axes of the D-tensor are found to be along the crystallographic b, c+45 degrees and a+45 degrees axes, respectively. This Mn<sup>2+</sup> centre has the correct principal axes system of the D-tensor compared with the previous Mn<sub>I</sub> centre. The D-value decreases as the temperature increases in the range 107-535 K. It is proposed that the Mn<sup>2+</sup> ion substitutes for Bi<sup>3+</sup> without nearby charge compensation. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Further study of the Mn<sup>2+</sup> EPR centre in ferro- and para-elastic BiVO<sub>4</sub>:spin Hamiltonian parameters and temperature dependence |
| Тип | paper |
| DOI | 10.1088/0953-8984/4/2/027 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 4 |
| Первая страница | 587 |
| Последняя страница | 598 |
| Аффилиация | T H Yeom; 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 | 2 |
