5 papers
Correlation of Tc with Crystal Chemical Parameters in High-Tc Cuprates, Diborides and Borocarbides: Concept of Arrangement and Function of Layered Superconductors
L. M. Volkova, S. A. Polyshchuk, F. E. Herbeck
The problems of participation of crystal chemical factors in creating of conditions to occurrence of a superconducting state in layered superconductors are considered. On the basis…
Why Tc of MgB2 is the highest in a number of diborides?
L. M. Volkova, S. A. Polyshchuk, F. E. Herbeck
It is shown, that the problem rising Tc diborides is a problem of nonstoichiometry in a plane of boron in diborides of heavy metals being compounds of variable composition.
Crystal Chemical Concept of Arrangement and Function of Layered Superconducting Materials
L. M. Volkova, S. A. Polyshchuk, S. A. Magarill +1
The crystal chemical concept of arrangement and function of layered superconducting materials is supposed. The concept is based on results of our investigation of crystal chemistry…
Absence of a Competition between Magnetism and Superconductivity in the Layered Nickel Borocarbides: Common Correlation Tc with Crystal Chemical Parameters for Magnetic and Nonmagnetic Compounds
L. M. Volkova, S. A. Polyshchuk, S. A. Magarill +1
In the work the analysis of crystal chemical researches of nickel borocarbides RNi2B2C (R = rare earth) is given. The reasons of representation of dependence of Tc from crystal che…
Crystal Chemical Estimation of Possible Exceeding of Tc of 77 K in Diborides
L. M. Volkova, S. A. Polyshchuk, S. A. Magarill +1
We establish the empirical correlation between Tc and crystal chemical parameters in diborides. Our results suggest that Tc of diborides can be higher 77K.