Tunneling Conductance of Ba1−x K x Fe2As2–GaAs Junction

Tanaka, Masashi; Shimada, Daisuke

doi:10.1007/s10948-009-0535-0

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…A point contact of a degenerated semiconductor GaAs with (Ba, K)-122 with T c = 31 K was realized by Tanaka et al [48]. A single gap of 9 meV was obtained but additional structures at about 23 mV were related to phonons or internal SIS Josephson junctions.…”

Section: Multiple Energy Gapsmentioning

confidence: 96%

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Josephson effects in iron based superconductors

Seidel¹

2011

Supercond. Sci. Technol.

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Just after the discovery of the iron based superconductors (iron pnictides) important differences from the conventional as well as to the high temperature superconducting cuprates were found. The complex band structure (multiple energy gaps, the unconventional symmetry of the superconducting order parameter and the unknown nature of the Cooper pair coupling mechanism) results in interesting new properties of these materials. This review summarizes the status of theoretical and experimental results on Josephson effects in the iron pnictides connected to these unusual properties. On one hand the investigation of Josephson effects can be a helpful tool to determine these properties and to test different theoretical models, but on the other hand these properties may lead to new kinds of Josephson junctions and future applications.

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Section: Multiple Energy Gapsmentioning

confidence: 96%

“…For the 122-family most results provide a single gap only, but with a wide spread of the gap values. Table 1 summarizes the experimental results on tunnelling and point contact measurements for the 122family [43][44][45][46][47][48][49][50].…”

Section: Multiple Energy Gapsmentioning

confidence: 99%