Possible existence of superconductivity in the quasionedimensional conductor Li_{0.9}Mo_{6}O_{17} at ultrahigh magnetic fields (H ≥45 T)
Abstract
We derive a socalled gap equation for superconductivity in a quasionedimensional (Q1D) layered conductor in a magnetic field, which is parallel to both its conducting plane and its conducting axis. This equation demonstrates that the orbital destructive effects against superconductivity cannot destroy it, if the perpendicular to the plane coherence length is less than the interplane distance. On the basis of our results, we suggest arguments that some triplet superconducting phase was indeed discovered in ultrahigh magnetic fields in the Q1D superconductor Li_{0.9}Mo_{6}O_{17} [see X. Xu et al., Phys. Rev. Lett. 102, 206602 (2009), 10.1103/PhysRevLett.102.206602]. We also discuss a possibility that the abovementioned superconducting phase can be stable at arbitrary high magnetic fields.
 Publication:

Physical Review B
 Pub Date:
 March 2016
 DOI:
 10.1103/PhysRevB.93.094523
 arXiv:
 arXiv:1604.02185
 Bibcode:
 2016PhRvB..93i4523L
 Keywords:

 Condensed Matter  Superconductivity
 EPrint:
 5 pages, 1 figure