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Pseudogap Isotope Effect as a Probe of Bipolaron Mechanism in High Temperature Superconductors.

作者信息

Lakhno Victor D

机构信息

Keldysh Institute of Applied Mathematics of Russian Academy of Sciences, 125047 Moscow, Russia.

出版信息

Materials (Basel). 2021 Aug 31;14(17):4973. doi: 10.3390/ma14174973.

DOI:10.3390/ma14174973
PMID:34501062
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8434434/
Abstract

A theory of a pseudogap phase of high-temperature superconductors where current carriers are translation invariant bipolarons is developed. A temperature T* of a transition from a pseudogap phase to a normal one is calculated. For the temperature of a transition to the pseudogap phase, the isotope coefficient is found. It is shown that the results obtained, in particular, the possibility of negative values of the isotope coefficient, are consistent with the experiment. New experiments on the influence of the magnetic field on the isotope coefficient are proposed.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ddc/8434434/9e5eca3d1bdb/materials-14-04973-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ddc/8434434/5c85614d45a8/materials-14-04973-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ddc/8434434/9e5eca3d1bdb/materials-14-04973-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ddc/8434434/5c85614d45a8/materials-14-04973-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ddc/8434434/9e5eca3d1bdb/materials-14-04973-g002.jpg

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本文引用的文献

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Thermodynamics and phase diagram of high temperature superconductors.高温超导体的热力学与相图
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