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Doping Evolution of the Superconducting Order Parameter of Na(Fe, Co)As Alkali-Metal Pnictides.
- Source :
-
JETP Letters . Jul2024, Vol. 120 Issue 2, p125-132. 8p. - Publication Year :
- 2024
-
Abstract
- Using incoherent multiple Andreev reflection effect spectroscopy, we have studied the multiple-gap superconducting state of underdoped and overdoped Na(Fe, Co)As single crystals. We directly determined the magnitudes of the microscopic superconducting order parameters, their temperature dependences, and characteristic ratios . The obtained large data statistics unambiguously proves a significant decrease in the degree of the large superconducting gap possible anisotropy in the overdoped compositions away from the antiferromagnetic and nematic regions of the doping phase diagram. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00213640
- Volume :
- 120
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- JETP Letters
- Publication Type :
- Academic Journal
- Accession number :
- 179414162
- Full Text :
- https://doi.org/10.1134/S0021364024602008