Sh. O. Shakhshaev

High-quality ZnO/GaN/α-Al2O3 heteroepitaxial structures grown by CVD

The first results on the preparation of (0001)ZnO/(0001)GaN/(0001) α-Al2O3 heteroepitaxial structures by CVD in a low-pressure flow-type reactor are reported. Study of the surface morphology and X-ray diffraction patterns showed high structural perfection of the zinc oxide layer, with a block misorientation in the basal plane not exceeding 21′. The photoluminescence spectra of samples exhibited dominating emission in the exciton region.

Growth of hollow annular zinc oxide structures

The conditions and mechanisms of the growth of hollow crystals, dendrite structures, and whiskers of zinc oxide during the annealing of pressed zinc oxide-carbon mixtures were studied. The growth of hollow structures is due to the interaction of reagents in pressed tablets, which is accompanied by the formation of a gas-impermeable external ZnO shell and the transport of Zn vapor and CO2 along the growing tube. Orientation of the hollow crystals is determined by the direction of Zn vapor transport. The process was modeled by the Zn vapor emission from a Knudsen effusion cell.

Controlled Growth of Quasibicrystal Zinc Oxide Structures

AbstractThe first results on the controlled growth of quasibicrystal structures containing interblock boundaries in epitaxial zinc oxide layers on sapphire (α-Al2O3) are reported. The structures with boundaries oriented in a preset direction can be used as a base for submicron microelectronic devices. Using the method of buffer layers, it is possible to obtain highly oriented layers of

A special feature in the magnetic moment orientation of highly magnetic phase particles in magnetically hard Fe-Co-Ni-Al alloys

(11\bar 20)ZnO

Study of domain structure of magnetic powder particles by Mössbauer spectroscopy

and (0001)ZnO with clear boundaries between blocks on the same

Investigations of the temperature stability of constant magnets by the method of the Mössbauer spectroscopy

(10\bar 12)Al_2 O_3