Table 1 A summary of the experimental results of key parameters pertaining to superconductivity in bulk and monolayer NbSe2 with CDW, and with CDW removed by pressure (p) or disorder (d).

From: Electron-phonon coupling and spin fluctuations in the Ising superconductor NbSe2

 

Bulk, CDW

Bulk, no CDW (p)

Bulk, no CDW (d)

Monolayer, CDW

Tc (K)

7.237,38,39

8.338, 8.439

7.037

3.53,10

\(\frac{d{H}_{{{{\rm{c2}}}}}}{dT}{| }_{T\to {T}_{{{{\rm{c}}}}}}\) (T/K)

0.5538, 0.9 39

0.42 38, 0.3639

-

0.621,3

  1. Not enough data exist to assess the trends in the superconducting gap, or in Hc2(0), but \(d{H}_{{{{\rm{c2}}}}}/dT{| }_{T\to {T}_{{{{\rm{c}}}}}}\) for the out-of-plane fields can be compared. Experimental results indicate that the CDW affects the pairing strength rather little. Note that the cited references ascribe the changes in the Hc2 to the changes in the Fermi velocity, not in the order parameter.