Hi, I was looking to get an idea of the energy scales in the cuprates. I've come across the number in this paper (DOI: 10.1103/PhysRevB.56.7878) that the energy gap below Tc quickly rises to about 3.25 kb Tc (Delta, not 2Delta). This is a theory paper though and I'm not sure how universal this calculation is. I can't seem to find a clean estimate of the energy gap anywhere (and also how it varies in k-space). Also, what is the size of the pseudogap? If someone could point me in the right direction regarding these numbers (maybe a book or article I could reference) that would be really cool. Thanks.