An Analysis of Strong Coupling in the High Tc Superconductors

Table 1

Results for assembling a new McMillan formula for the HTSCs.

Material	𝜃𝐷	Exp Tc	𝜆	𝑄	𝜔𝑞	CalTc1	CalTc2	References
2Tl (𝑛=3)	458	125	4.9	81.0	33.1	124.5	127.7	[18]
2Tl (𝑛=2)	424	107	3.9	61.0	31.3	107.3	107.7	[18]
Y123	380	92	3.5	50.0	28.6	92.9	91.68	[19]
2Bi (𝑛=2)	375	89	3.4	46.0	126.4	90.0	89.0	[20]
Nd (𝑛=2)		84	3.1	42.2	128.2	84.5	—	—
2Tl (𝑛=1)	370	80	2.8	39.2	28.0	80.7	78.6	[21]
La (𝑛=1)	280	40	1.7	18.3	20.9	40.0	39.9	[20]