Charge distribution in high-Tc superconductors
Kusmartsev F. V., Khomskii D. I.
In a superconductor which has two groups of electrons (e.g., holes in Cu02 planes and in a "reservoir" in a high-7"c superconductor), a charge redistribution occurs upon the transition of one of the subsystems to a superconducting state: The density of "active" carriers increases at T< Tc. This effect can explain several structural anomalies in the high-!Tc superconductors. It changes the temperature dependence of the properties of the superconductor. It may lead to several effects at a contact of a high-7^ superconductor with a normal metal or a semiconductor.
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![](/ps/1199/article_18107_800_head.png "In a superconductor which has two groups of electrons (e.g., holes in Cu0<sub>2</sub> planes and in a "reservoir" in a high-7"<sub>c</sub> superconductor), a charge redistribution occurs upon the transition of one of the subsystems to a superconducting state: The density of "active" carriers increases at <i>T< T<sub>c</sub></i>. This effect can explain several structural anomalies in the high-!T<sub>c</sub> superconductors. It changes the temperature dependence of the properties of the superconductor. It may lead to several effects at a contact of a high-7^ superconductor with a normal metal or a semiconductor.")