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.
|Title:||Correlation between crystal structure and resistivity of high-temperature superconducting cuprates|
|Journal or Publication Title:||Armenian Journal of Physics|
|In 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 assignement|
|DLR - Research theme (Project):||R -- no assignement|
|Institutes and Institutions:||Space Operations and Astronaut Training|
|Deposited By:||Maria Schönermark|
|Deposited On:||03 Feb 2012 09:15|
|Last Modified:||20 Mar 2013 19:45|
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