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cond-mat.supr-con2003
A layering model for superconductivity in the borocarbides
Thereza Paiva, Mohammed El-Massalami, Raimundo R. dos Santos
We propose a superlattice model to describe superconductivity in layered materials, such as the borocarbide families with the chemical formulæ BC and BC, with bei…
cond-mat.str-el2003
Introduction to Quantum Monte Carlo simulations for fermionic systems
Raimundo R. dos Santos
We tutorially review the determinantal Quantum Monte Carlo method for fermionic systems, using the Hubbard model as a case study. Starting with the basic ingredients of Monte Carlo…
cond-mat.mtrl-sci2003
Magnetic-field effects in defect-controlled ferromagnetic Ga_{1-x}Mn_xAs semiconductors
Raimundo R. dos Santos, J. d'Albuquerque e Castro, L. E. Oliveira
We have studied the magnetic-field and concentration dependences of the magnetizations of the hole and Mn subsystems in diluted ferromagnetic semiconductor Ga_{1-x}Mn_xAs. A mean-f…