Condensed Matter Physics, 1996, No 8, p. 57-67, English
<br><A HREF="https://doi.org/10.5488/CMP.8.57"> DOI:10.5488/CMP.8.57</A>

<HR>

<B>Title: </B>ON HYDRODYNAMIC THEORY OF QUANTUM SPIN CRYSTALS<BR>
<B>Authors: </B>A.A.Isayev, M.Yu.Kovalevsky (National Centre "Kharkiv Physical and Technical
Institute" Ukrainian National Academy of Sciences,
1 Academichna St., UA-310108 Kharkiv, Ukraine)

<blockquote>
On the base of the Hamiltonian approach, hydrodynamic equations for quantum
spin crystal  are obtained.  Basic thermodynamic identity is formulated.
Expressions for the flux densities of additive motion integrals
in terms of thermodynamic potential density are found
both for the cases of Galilean invariant and  Galilean noninvariant
systems. Stationary solutions corresponding to  spiral
magnetic ordering are received. Spectrum of propagating modes is studied.
</blockquote>
<B>Comments: </B>Refs. 12, Tabs. 0, Figs. 0.<BR>

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