Thermal conductivity of systems with a gap in the phonon spectrum<xref rid="cpb_27_7_076502fn1" ref-type="fn">*</xref><fn id="cpb_27_7_076502fn1"> <label>*</label><p>Project supported by the Ural Branch of the Russian Academy of Sciences, Russia (Grant No. 18-2-2-12), the Russian Foundation for Basic Research, Russia (Grant Nos. 16-07-00529 and 18-07-00191), and the Financing Program, Russia (Grant No. AAAA-A16-116021010082-8).</p></fn>

Thermal conductivity of systems with a gap in the phonon spectrum* *

Project supported by the Ural Branch of the Russian Academy of Sciences, Russia (Grant No. 18-2-2-12), the Russian Foundation for Basic Research, Russia (Grant Nos. 16-07-00529 and 18-07-00191), and the Financing Program, Russia (Grant No. AAAA-A16-116021010082-8).

Salamatov E^†

(color online) The phonon density of states for the same parameter values as that in Fig. 1. The dashed line shows the phonon density of states in the Debye model.