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<creators>
<creator>
<creatorName>Palistrant, M.E.</creatorName>
<affiliation>Institutul de Fizică Aplicată al AŞM, Moldova, Republica</affiliation>
</creator>
<creator>
<creatorName>Ursu, V.A.</creatorName>
<affiliation>Institutul de Fizică Aplicată al AŞM, Moldova, Republica</affiliation>
</creator>
</creators>
<titles>
<title xml:lang='en'>Superconductivity properties of compound MgB2 on basis of two-band model</title>
</titles>
<publisher>Instrumentul Bibliometric National</publisher>
<publicationYear>2007</publicationYear>
<relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>1810-648X</relatedIdentifier>
<dates>
<date dateType='Issued'>2007-05-05</date>
</dates>
<resourceType resourceTypeGeneral='Text'>Journal article</resourceType>
<descriptions>
<description xml:lang='en' descriptionType='Abstract'>The theory of thermodynamic properties of two-band superconductor with reduced den-

sity of charge carriers is developed on the basis of phonon superconducting mechanism with 
strong electron-phonon interaction. 
This theory is adapted to describe the behavior of critical temperature TC, energy gaps 
Δ1, Δ2, and the relative jump of electron specific heat  (CS-CN)/CN in the point T = TC along 
with the variation of charge carrier density in the compound MgB2 when substitutional impurities with different valence are introduced into the system. It is shown, that according to the 
filling mechanism of energy bands which overlap on the Fermi surface, the quantities TC, Δ1, 

Δ2 decrease when this compound is doped with electrons and remain constant or weakly 
change when the system is doped with holes. The theory qualitatively agrees with the experimental data. 
It is also shown that the consideration of inter- and intraband scattering of electrons on 
impurity potential improves this agreement. </description>
</descriptions>
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<format>application/pdf</format>
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