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Analysis of the pseudogap-related structure in tunnel spectra of the superconducting Bi₂Sr₂CaCu₂O₈₊δ revealed by break-junction technique
Tunnel conductance G(V)for break-junctions made of as-grown single-crystal Bi₂Sr₂CaCu₂O₈₊δ samples with Tc≈86-89 K was measured and clear-cut dip-hump structures (DHSs) were found in the range 80-120mV of the bias voltage V. The theory of tunneling in symmetric junctions between inhomogeneous cha...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2008
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| Series: | Физика низких температур |
| Subjects: | |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/116970 |
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| Summary: | Tunnel conductance G(V)for break-junctions made of as-grown single-crystal Bi₂Sr₂CaCu₂O₈₊δ samples
with Tc≈86-89 K was measured and clear-cut dip-hump structures (DHSs) were found in the range
80-120mV of the bias voltage V. The theory of tunneling in symmetric junctions between inhomogeneous
charge-density-wave (CDW) superconductors, considered in the framework of the s-pairing model, has been
developed. CDWs have been shown to be responsible for the appearance of the DHS in the tunnel current-
voltage characteristics and properly describes experimental results. |
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