Theory of Basov correlation between penetration depth and conductivity along the c-axis in high-Tc cuprate superconductors

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We present a theoretical explanation for the correlation between the c-axis penetration depth and the c-axis conductivity (σc) in high-Tc cuprates which was experimentally discovered by Basov et al. [Phys. Rev. B 50 (1994) 3511]. Our model is based on the BCS theory for the quasi-two-dimensional d-wave superconductivity in which the strength of the incoherency in the c-axis charge dynamics is controlled by potential scatterings. We show that the Basov correlation is realized when the difference in the magnitude of σc among various high-Tc cuprate materials is dominated not by the damping of electrons but by the carrier density and/or the band mass along the c-axis. It is also shown that there exists a correlation between the c-axis Josephson plasma frequency and σc in high-Tc cuprates.

Original languageEnglish
Pages (from-to)659-662
Number of pages4
JournalJournal of the Physical Society of Japan
Volume69
Issue number3
Publication statusPublished - 2000 Mar
Externally publishedYes

Fingerprint

cuprates
penetration
conductivity
BCS theory
plasma frequencies
superconductivity
damping
scattering
electrons

Keywords

  • Conductivity
  • High-T superconductivity
  • Josephson plasma
  • Penetration depth

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

@article{657d26ee8eba4982bf26b8f120d6ff26,
title = "Theory of Basov correlation between penetration depth and conductivity along the c-axis in high-Tc cuprate superconductors",
abstract = "We present a theoretical explanation for the correlation between the c-axis penetration depth and the c-axis conductivity (σc) in high-Tc cuprates which was experimentally discovered by Basov et al. [Phys. Rev. B 50 (1994) 3511]. Our model is based on the BCS theory for the quasi-two-dimensional d-wave superconductivity in which the strength of the incoherency in the c-axis charge dynamics is controlled by potential scatterings. We show that the Basov correlation is realized when the difference in the magnitude of σc among various high-Tc cuprate materials is dominated not by the damping of electrons but by the carrier density and/or the band mass along the c-axis. It is also shown that there exists a correlation between the c-axis Josephson plasma frequency and σc in high-Tc cuprates.",
keywords = "Conductivity, High-T superconductivity, Josephson plasma, Penetration depth",
author = "Yoji Ohashi",
year = "2000",
month = "3",
language = "English",
volume = "69",
pages = "659--662",
journal = "Journal of the Physical Society of Japan",
issn = "0031-9015",
publisher = "Physical Society of Japan",
number = "3",

}

TY - JOUR

T1 - Theory of Basov correlation between penetration depth and conductivity along the c-axis in high-Tc cuprate superconductors

AU - Ohashi, Yoji

PY - 2000/3

Y1 - 2000/3

N2 - We present a theoretical explanation for the correlation between the c-axis penetration depth and the c-axis conductivity (σc) in high-Tc cuprates which was experimentally discovered by Basov et al. [Phys. Rev. B 50 (1994) 3511]. Our model is based on the BCS theory for the quasi-two-dimensional d-wave superconductivity in which the strength of the incoherency in the c-axis charge dynamics is controlled by potential scatterings. We show that the Basov correlation is realized when the difference in the magnitude of σc among various high-Tc cuprate materials is dominated not by the damping of electrons but by the carrier density and/or the band mass along the c-axis. It is also shown that there exists a correlation between the c-axis Josephson plasma frequency and σc in high-Tc cuprates.

AB - We present a theoretical explanation for the correlation between the c-axis penetration depth and the c-axis conductivity (σc) in high-Tc cuprates which was experimentally discovered by Basov et al. [Phys. Rev. B 50 (1994) 3511]. Our model is based on the BCS theory for the quasi-two-dimensional d-wave superconductivity in which the strength of the incoherency in the c-axis charge dynamics is controlled by potential scatterings. We show that the Basov correlation is realized when the difference in the magnitude of σc among various high-Tc cuprate materials is dominated not by the damping of electrons but by the carrier density and/or the band mass along the c-axis. It is also shown that there exists a correlation between the c-axis Josephson plasma frequency and σc in high-Tc cuprates.

KW - Conductivity

KW - High-T superconductivity

KW - Josephson plasma

KW - Penetration depth

UR - http://www.scopus.com/inward/record.url?scp=0034401781&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034401781&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0034401781

VL - 69

SP - 659

EP - 662

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 3

ER -