Interlayer resistance and thermoelectric power as a probe of the Josephson coupling in layered superconductors
| Autor: | M. V. Kartsovnik, Harald Müller, Gennadii Yu. Logvenov, Paul Müller |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Coupling
Superconductivity Materials science Condensed matter physics Energy Engineering and Power Technology Charge (physics) Josephson energy Josephson coupling Condensed Matter Physics Electronic Optical and Magnetic Materials Pi Josephson junction Seebeck coefficient Organic superconductor Electrical and Electronic Engineering |
| Zdroj: | Physica C: Superconductivity. 292:279-285 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/s0921-4534(97)01775-9 |
| Popis: | We present an experimental study of the interlayer resistance and thermoelectric power (TEP) in the mixed state of the high-temperature superconductor Bi 2 Sr 2 CaCu 2 O 8+ x and organic superconductor κ -( d 8 ,BEDT-TTF) 2 Cu(NCS) 2 in the vicinity of T c . The behaviour of these quantities is discussed in terms of the Josephson coupling in these layered superconductors. In contrast to the tunnel origin of the Josephson coupling in Bi 2 Sr 2 CaCu 2 O 8+ x , the superconductor-normal metal-superconductor coupling is suggested to take place in κ -( d 8 ,BEDT-TTF) 2 Cu(NCS) 2 . The observed difference in the temperature dependencies of the TEP and the resistance in the latter compound is related to the significant charge imbalance at the multiple NS boundaries. |
| Databáze: | OpenAIRE |
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