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Correlation between crystal structure and resistivity of high-temperature superconducting cuprates

Roeser, H.P. and Bohr, A. and Haslam, D.T. and Lopez, J.S. and Stepper, M. and Huber, F.M. and Nikoghosyan, A.S. (2011) Correlation between crystal structure and resistivity of high-temperature superconducting cuprates. Armenian Journal of Physics, Vol.4 (issue 2), pp. 109-133.

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The experimental resistivity of high temperature superconducting (HTSC) cuprates at about Tc has been determined by many authors. For large devices the in-CuO2-plane resistivity has a range of (~ 0.5 < ρ(exp) < ~15) • 10-6 Ωm. Above Tc all HTSC materials behave like a classical device and the resistance depends on cross section and length of the device. Assuming a superconducting unit volume and a mode structure, which are given by the doping pattern through-out the whole crystal, the experimental resistivity values have been plotted versus ~ LR/Nmode. It shows a strong linear correlation in the form ρ(exp) = m3 • (LR/Nmode) • (n4/n3) with a slope of m3 = (13.39 ± 0.79) • 103 Ω. LR is an effective resistivity length, Nmode is the number of CuO2 planes per unit cell, n3 is the number of Cu3+ -ions per chemical formula and n4 is the number of different shifted stacking sequences per unit cell. The value for m3 is very close to the fundamental resistance of a single-mode ballistic conductor Rsm = h/2e2 ≈12,906 Ω, which appears when size quantization plays a dominant role.

Item URL in elib:https://elib.dlr.de/74686/
Document Type:Article
Title:Correlation between crystal structure and resistivity of high-temperature superconducting cuprates
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Roeser, H.P.roeser (at) irs.uni-stuttgart.deUNSPECIFIED
Bohr, A.Universität StuttgartUNSPECIFIED
Haslam, D.T.Universität stuttgartUNSPECIFIED
Lopez, J.S.Universität StuttgartUNSPECIFIED
Stepper, M.Universität stuttgartUNSPECIFIED
Nikoghosyan, A.S.Yerevan State UniversityUNSPECIFIED
Journal or Publication Title:Armenian Journal of Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:No
Page Range:pp. 109-133
Keywords:superconducting phase transition, superconducting current channels, resistivity of cuprates
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Schönermark, Maria
Deposited On:03 Feb 2012 09:15
Last Modified:20 Mar 2013 19:45

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