PHASE TRANSITION IN SUPERCONDUCTIVITY AT TWO-PHONON EXCHANGE BETWEEN THE ELECTRONS

机译：电子在两次声子交换中的超导相变

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The two-quanta cooperative effects can appear in superconductivity, where the Cooper pairs are created due to the simultaneous two-phonon exchange between electrons. It occurs when the one-phonon exchange integral between the band electrons is smaller than that of the two-phonon exchange. This is possible in many-band superconducting materials, in which the two-phonon exchange integral arises through the virtual bands of the material. In the two-phonon processes, a more complicated temperature dependence on the order parameter is expected. A rigorous study of this anomalous temperature dependence on the order parameter of superconductors is presented in this paper.

机译：两量子点的协同效应可能出现在超导中，由于电子之间同时进行的两个声子交换，从而产生了库珀对。当带电子之间的单声子交换积分小于双声子交换的积分时，就会发生这种情况。这在多频带超导材料中是可能的，其中通过材料的虚拟带产生两个声子交换积分。在双声子过程中，预期温度对阶数参数的依赖性会更加复杂。本文对这种温度异常对超导体有序参数的依赖进行了严格的研究。

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《NATO Advanced Study Institute on Structure and Dynamics of Elementary Matter; 20030922-1002; Camyuva-Kemer(Antalya)(TR)》|2003年|P.635-638|共4页
会议地点 Camyuva-Kemer(Antalya)(TR)
作者
N.A.Enaki; V.V. Eremeev;
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作者单位

Institute of Applied Physics, Academy of Sciences of Moldova, Academiei str. 5, Chisinau MD- 2028, Moldova;

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正文语种 eng
中图分类原子核物理实验;
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PHASE TRANSITION IN SUPERCONDUCTIVITY AT TWO-PHONON EXCHANGE BETWEEN THE ELECTRONS

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