English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Noncentrosymmetric superconductors (NCSs) with broken inversion symmetry canhave spin-dependent order parameters (OPs) with mixed parity which can alsohave nodes in the pair potential as well as the energy spectra. These nodes aredistinct features that are not present in conventional superconductors. Theyappear as points or lines in the momentum space where the latter can haveangular or radial geometries dictated by the dimensionality, the latticestructure and the pairing interaction.  In this work we study the nodes in time reversal symmetry (TRS) preservingNCSs at the OP, the pair potential, and the energy spectrum levels. Nodes areexamined by using spin independent pairing interactions respecting therotational $C_{\infty v}$ symmetry in the presence of spin-orbit coupling(SOC). The pairing symmetries and the nodal topology are affected by therelative strength of the pairing channels which is studied for the mixedsinglet-triplet, pure singlet, and pure triplet. Complementary to the angularline nodes widely present in the literature, the $C_{\infty v}$ symmetry hereallows radial line nodes (RLNs) due to the nonlinear momentum dependence in theOPs. The topology of the RLNs in the mixed case shows a distinctly differentcharacterization than the half-spin quantum vortex at the Dirac point. We applythis NCS physics to the inversion symmetry broken exciton condensates (ECs) indouble quantum wells where the point and the RLNs can be found. On the otherhand, for a pure triplet condensate, two fully gapped and topologicallydistinct regimes exist, separated by a QSHI-like zero energy superconductingstate with even number of Majorana modes. We also remark on how the point andthe RLNs can be manipulated, enabling an external control on thetopology.tions.

Unconventional Pairings and Radial Line Nodes in Inversion Symmetry Broken Superconductors