Journal of Physical Studies 4(3), 259–265 (2000)
DOI: https://doi.org/10.30970/jps.04.259

MECHANISM OF FORMATING SPIN-WAVE-LIKE EXCITATIONS IN A MAGNETIC LIQUID

I. Mryglod¹, S. Dubyk², Yu. Rudavskii²
¹Institute for Condensed Matter Physics, National Academy of Sciences of Ukraine,
1 Svientsitskii Str., Lviv, UA-79011, Ukraine
²State University ‟Lvivska Politekhnika”,
12 Bandera Str., Lviv, UA-79013, Ukraine

A mechanism of formating propagating spin-wave-like collective excitations in high-temperature phase is studied on the example of the Heisenberg model of a magnetic liquid. The conditions for the appearance and observation of such excitations in the behaviour of magnetic dynamic structural factor are found. The obtained results are analysed in comparison with the ones found for solid magnets.

PACS number(s): 05.60.+w, 51.10.+y, 75.50.Mm