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Inter-layer pairing mechanism of high-Tc superconductors

โœ Scribed by T. Takemori; M. Inoue; K. Ohtaka; R. Yoshizaki; T. Sakudo

Publisher
Elsevier Science
Year
1987
Weight
207 KB
Volume
148
Category
Article
ISSN
0378-4363

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โœฆ Synopsis

In a layered material like YBa2Cu30 x, the effect of Coulomb repulsion is substantially reduced if Cooper pairs are formed out of electrons on neighboring layers. The strong coupling calculation shows that inter-layer pairing cannot coexist with intra-layer pairing. We give the condition for inter-layer pairing in the form of a phase diagram. Stability against impurities is also discussed. Small nuclear spin relaxation rate should distinguish inter-layer pairing from intra-layer pairing.

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