Superconducting 2D system with lifted spin degeneracy: mixed singlet-triplet state.
By L. Gor’kov, E. Rashba. Physical Review Letters, 2001
644 citations recorded by the source corpus.
Motivated by recent experimental findings, we have developed a theory of the superconducting state for 2D metals without inversion symmetry modeling the geometry of a surface superconducting layer in a field-effect transistor or near the boundary doped by adsorbed ions. In such systems the twofold spin degeneracy is lifted by spin-orbit interaction, and singlet and triplet pairings are mixed in the wave function of the Cooper pairs. As a result, spin magnetic susceptibility becomes anisotropic and Knight shift retains finite and rather high value at T = 0.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/f488158f4aadc5a862caec27a60936caf81eb35b
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Topological superconductivity in two-dimensional altermagnetic metals (2023, background): “We note that for the chiral p -wave pairing, another degenerate solution exists corresponding to The fact that the solutions are exclusively mixed parity is a natural consequence of the lack of inversion symmetry in the system 78 .”
- Superconducting spintronics (2015, background): “will intrinsically be a mixture of singlet and triplet pair correlations [26].”
- Remarkable effects of disorder on superconductivity of single atomic layers of lead on silicon (2014, background): “This should lead to a significant momentum dependence of the gap [36] that would result in an effective magnetic behaviour of the conventional non-magnetic impurities.”