Figure 2. (IMAGE) Science China Press Caption The ratio Tcmax/TF increases roughly linearly as a function of kFd, where Tcmax is the maximum Tc for given lattice constant d as the pairing strength varies. Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.