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Analysis of the pseudogap-related structure in the tunnel spectra of superconducting revealed by break-junction technique
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View: Figures


Image of FIG. 1.
FIG. 1.

Points denote a normalized experimental curve of dependence the differential conductance for a BSCCO break junction measured at , where is the quasiparticle tunnel current and the bias voltage across the junction, versus the value, where is the elementary charge. The amplitude of voltage modulation for calculating was . A solid curve corresponds to the calculated dependence of the dimensionless differential conductance of a tunnel junction between two identical inhomogeneous CDW superconductors. is the resistance of the junction in the normal state. The parameters of the CDW superconductors are , , the Fermi surface CDW-gapping parameter , and the temperature . The interval of numerical differentiantion .

Image of FIG. 2.
FIG. 2.

The dependences for , , and with various , 10, and (solid, dashed, and short-dashed curves, respectively); , the interval of numerical differentiation .

Image of FIG. 3.
FIG. 3.

The same as in Fig. 2 but for , , and various , 20, and (solid, dashed, and short-dashed curves, respectively).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Analysis of the pseudogap-related structure in the tunnel spectra of superconducting Bi2Sr2CaCu2O8+δ revealed by break-junction technique