Title: The high-order cyclotron modes in Fermi liquid of Q2D layered conductors
Author(s):

	O.V.Kirichenko (B.I.Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of the Ukraine, 47 Lenin ave, Kharkiv, 61103, Ukraine) ,
	V.G.Peschansky (B.I.Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of the Ukraine, 47 Lenin ave, Kharkiv, 61103, Ukraine) ,
	D.I.Stepanenko (B.I.Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of the Ukraine, 47 Lenin ave, Kharkiv, 61103, Ukraine) ,

The propagation of electromagnetic waves in layered conductors at the presence of an external magnetic field is investigated theoretically. At certain orientations of a magnetic field concerning the layers of the conductor the collisionless absorption is absent and weakly damping collective modes can propagate even under the strong spatial dispersion. In a short-wave limit the existence of electromagnetic waves with frequencies near the cyclotron resonances is possible at an arbitrary orientation of the wave vector with respect to an external magnetic field. We have obtained the spectrum of waves with the frequencies near the cyclotron resonances of high order with regard to the Fermi-liquid interaction of the electrons.

Key words: layered conductors, Fermi liquid, cyclotron waves
PACS: 72.15.Nj, 72.30.+q