Fig. 1: Experimental reports of the superconducting transition temperature versus alloy concentration.

Data is for bulk and ML NbS_xSe_2−x alloys as a function of S content, x and Si content, y. The references associated with each marker is as follows: gray open squares¹⁶, gray circles¹⁵, teal and orange filled downward triangles and diamonds¹², red triangles¹⁰ and blue filled square¹. Open symbols correspond to measurements on bulk samples while filled symbols correspond to measurements on ML samples. The dotted lines correspond to a linear extrapolation of the ML data for x > 0.4. See the main text for the discussion on the extrapolation.