The anisotropic microwave absorption in the presence of alternative magnetic field has been studied for the first time in superconducting super-lattices based on PbTe-PbS, which are layered anisotropic systems similar to high T_{c} superconductors. A new method of study has been used. The microwave response was detected under broad-band conditions and compared with the results of synchronous detection. All the features which have been observed in high T_{c} materials are clearly seen here.
A comparative study of structural and superconductive properties of semi conductor epitaxial superlattices PbTe-SnTe and PbTe-PbS grown on (001) KCl has been carried out. It has been found that the superconductivity of the PbTe-SnTe superlattices is caused by the stretching strain in the SnTe layers and it may be connected with the relative positions of L^{+}_{8} and L^{+}_{6} terms of PbTe and SnTe, respectively in the heterojunction. In contrast to the PbTe-SnTe superlattices, the superconductivity of the PbTe-PbS super lattices is found to be associated with regular misfit dislocation grids which are generated at the interfaces.
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.