Light scattering on phonons in quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O induced by magnetic ordering

Light scattering on phonons in quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O induced by magnetic ordering

Kurnosov, V.S. ; Pashkevich, Yu. G. ; Peschanskii, A.V. ; Fomin, V.I. ; Yeremenko, A.V.

Тема: Магнетизм

Інший ID: PACS: 71.45.-d, 78.30.-j

URI: http://dspace.nbuv.gov.ua/handle/123456789/130227

Посилання: Light scattering on phonons in quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O induced by magnetic ordering / V.S. Kurnosov, Yu.G. Pashkevich, A.V. Peschanskii, V.I. Fomin, A.V. Yeremenko // Физика низких температур. — 2002. — Т. 28, № 7. — С. 724-732. — Бібліогр.: 14 назв. — англ.

Підтримка: The authors are very grateful to Prof. V.V. Eremenko for his constant interest in this research and for helpful discussion.

Дата: 2002

Завантажень: 366

Light scattering on phonons in quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O induced by magnetic ordering

Анотація:

The appearance of new phonon lines in the Raman spectrum of the quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O as a consequence of magnetic ordering with a change of the unit cell volume was detected experimentally. An analysis of the possible mechanisms that might lead to the observed spectral features is done. A new mechanism of inducing Raman scattering on phonons from the boundary of the paramagnetic Brillouin zone is hypothesized.

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