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cond-mat.stat-mech2004
Phase and Charge reentrant phase transitions in two capacitively coupled Josephson arrays with ultra-small junction
Guillermo Ramirez-Santiago, Jorge V. Jose
We have studied the phase diagram of two capacitively coupled Josephson junction arrays with charging energy, , and Josephson coupling energy, . Our results are obtained…
cond-mat.stat-mech2002
Polymer Chain Collapse in Supercritical Fluids
C. Ortiz-Estrada, G. Luna-Barcenas, G. Ramirez-Santiago +2
My means of extensive Monte Carlo simulations the mean radius of gyration and the end-to-end distance are calculated for a single chain in a solvent over a broad range of volume fr…
cond-mat.stat-mech1999
A generalization of the spherical model: Reentrant phase transition in the spin one ferromagnet
Sergey E. Savelev, G. Ramirez-Santiago
By mapping the hamiltonian of the spin one ferromagnet onto that of the classical spherical model we investigate the possible phase transitions and the phase diagram of the spin on…