Pressure Effect in Bi-2212 and Bi-2223 Cuprate Superconductor
Shintaro Adachi, Ryo Matsumoto, Hiroshi Hara, Yoshito Saito, Peng, Song, Hiroyuki Takeya, Takao Watanabe, Yoshihiko Takano
TL;DR
This study investigates how applying pressure affects the superconducting transition temperature in Bi-2223 and Bi-2212 cuprate superconductors, revealing pressure-induced carrier doping effects.
Contribution
It provides experimental evidence that high pressure can effectively dope carriers in multilayered high-Tc cuprates, influencing their superconducting properties.
Findings
Tc exhibits a dome-shaped dependence on pressure.
High pressure induces effective carrier doping.
Pressure effects align with carrier concentration-Tc relation.
Abstract
We report the pressure effect in Bi2Sr2Ca2Cu3O10+{\delta} (Bi-2223) single crystal with a small amount of intergrowth of Bi2Sr2CaCu2O8+{\delta} (Bi-2212). Their superconducting transition temperatures Tcs showed a domelike shape as a function of pressure, which showed a good agreement with the general relation between the carrier concentration and Tc. Our experimental results indicate that high pressure can induce effective carrier doping into the multilayered high-Tc cuprate superconductor
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