Unscaling superconducting parameters with Tc for Bi-2212 and Bi-2223: A magnetotransport study in the superconductive fluctuation regime

Shintaro Adachi, Tomohiro Usui, Yasuhito Ito, Hironobu Kudo, Haruki Kushibiki, Kosuke Murata, Takao Watanabe, Kazutaka Kudo, Terukazu Nishizaki, Norio Kobayashi, Shojiro Kimura, Masaki Fujita, Kazuyoshi Yamada, Takashi Noji, Yoji Koike, Takenori Fujii

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8 Citations (Scopus)

Abstract

To investigate the origin of the enhanced Tc (≈ 110 K) of the trilayer cuprate superconductor Bi2Sr2Ca2Cu3O10+δ (Bi-2223), we have performed systematic magnetoresistance (MR) measurements on this superconductor, as well as on the bilayer superconductor, Bi2Sr2CaCu2O8+δ (Bi-2212). The in-plane coherence length, ξab, and the specific-heat jump, ΔC, have been estimated using the theory of renormalized superconductive fluctuations, and the doping dependence of these parameters has been qualitatively explained using the Fermi arc approach. A detailed comparison of the superconducting parameters with Tc for these compounds suggests that an additional superconducting condensation energy exists, due to an increase in the number of stacking CuO2 planes in a unit cell.

Original languageEnglish
Article number024706
Journaljournal of the physical society of japan
Volume84
Issue number2
DOIs
Publication statusPublished - 2015 Feb 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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