| Issue |
EPL
Volume 132, Number 4, November 2020
|
|
|---|---|---|
| Article Number | 47002 | |
| Number of page(s) | 7 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/132/47002 | |
| Published online | 04 January 2021 | |
Shot noise as a probe for the pairing symmetry of iron pnictide superconductors
School of Physical Sciences, National Institute of Science Education & Research, HBNI - Jatni-752050, India
Received: 20 August 2020
Accepted: 12 November 2020
One of the outstanding problems in Iron pnictide research is the unambiguous detection of its pairing symmetry. The most probable candidates are the two-band 
and sign-reversed 
wave pairing. In this work the Andreev conductance and shot noise are used as a probe for the pairing symmetry of Iron pnictide superconductors. Clear differences emerge in both the zero bias differential conductance and the shot noise in the tunneling limit for the two cases enabling an effective distinction between the two.
PACS: 74.70.Xa – Pnictides and chalcogenides / 74.45.+c – Proximity effects; Andreev reflection; SN and SNS junctions / 07.50.Hp – Electrical noise and shielding equipment
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