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Superconducting 2D System with Lifted Spin Degeneracy: Mixed Singlet-Triplet State

Journal Article · · Physical Review Letters
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 .
Sponsoring Organization:
(US)
OSTI ID:
40277130
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 87; ISSN 0031-9007
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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