| Автор | S V Maleyev |
| Автор | V P Plakhty |
| Автор | O P Smirnov |
| Автор | J Wosnitza |
| Автор | D Visser |
| Автор | R K Kremer |
| Автор | J Kulda |
| Дата выпуска | 1998-02-09 |
| dc.description | The polarization-dependent part of the neutron scattering in the triangular-lattice antiferromagnet is studied. This scattering appears in an external magnetic field and is determined by the projection of a chiral fluctuation on the sample magnetization (the dynamical chirality, DC). It is shown that the DC cross section is an odd function of the energy transfer, , and is proportional to the magnetic field up to 10 kOe above . A Be filter is used instead of the analyser for measuring the DC scattering integrated over . It is shown that below the field dependence of this intensity reveals two features related to the acoustic spin waves and to a new type of low-energy magnetic excitation, presumably of topological nature. The temperature dependence of the acoustic spin waves near is in qualitative agreement with dynamical scaling. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The first observation of dynamical chirality by means of polarized neutron scattering in the triangular-lattice antiferromagnet |
| Тип | paper |
| DOI | 10.1088/0953-8984/10/5/005 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 10 |
| Первая страница | 951 |
| Последняя страница | 960 |
| Выпуск | 5 |
