| Автор | H Sakai |
| Автор | S -H Baek |
| Автор | E D Bauer |
| Автор | F Ronning |
| Автор | J D Thompson |
| Дата выпуска | 2010-03-01 |
| dc.description | UNiSi<sub>2</sub> orders ferromagnetically below T<sub>Curie</sub> 95 K. This material crystallizes in the orthorhombic CeNiSi<sub>2</sub>-type structure. The uranium atoms form double-layers, which are stacked along the crystallographic b axis (the longest axis). From magnetization measurements the easy (hard) magnetization axis is the c axis (b axis). <sup>29</sup>Si-NMR measurements have been performed in the paramagnetic state. In UNiSi<sub>2</sub>, two crystallographic Si sites exist with orthorhombic local symmetry. The Knight shifts on each Si sites have been estimated from these spectra of random and oriented powders. The transferred hyperfine couplings have been also derived. It is found that the transferred hyperfine coupling constants on each Si sites are nearly isotropic, and that their Knight shift anisotropy comes from that of the bulk susceptibility. The nuclear-spin lattice relaxation rate 1/T<sub>1</sub> shows temperature-independent behaviour, which indicates the existence of localized 5f electrons. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | © 2010 IOP Publishing Ltd |
| Название | <sup>29</sup>Si-NMR study of magnetic anisotropy and hyperfine interactions in the uranium-based ferromagnet UNiSi<sub>2</sub> |
| Тип | paper |
| DOI | 10.1088/1757-899X/9/1/012097 |
| Electronic ISSN | 1757-899X |
| Print ISSN | 1757-8981 |
| Журнал | IOP Conference Series: Materials Science and Engineering |
| Том | 9 |
| Первая страница | 12097 |
| Последняя страница | 12103 |
| Выпуск | 1 |
