3 papers
cond-mat.mtrl-sci2000
Ferromagnetism in a (001), (110), and (111)-oriented Ru mololayer on Ag, Au, and Cu-substrates
L. M. Garcia-Cruz, A. V. Gaftoi, A. Rubio-Ponce +2
We have studied the magnetic behavior of a 4d transition metal Ru monolayer (ML) on different substrates and orientations. In the ground state, a Ru-ML is expected to be ferromagne…
cond-mat.mtrl-sci1999
Van Hove Singularities around the Fermi level in YBa2Cu3O7: The importance of the chains
A. Rubio-Ponce, R. Baquero
We have reproduced band structure calculations from the literature and have used them to analyze in detail the energy landscape around the Fermi level. We found three Van Hove sing…
cond-mat1999
Analysis of the approximations used in the van Hove-BCS theory
D. Quesada, A. Rubio-Ponce, R. Pena +2
An analysis of the different approaches used within the van Hove BCS model for the high temperature superconductors has been done. How far the employment of an asymptotic expressio…