We have investigated the presence of a phase separation in the phase diagram of a Kondo-like spin-hole coupled model. Within a mean-field analysis we find that the system in the normal phase separates into a spin liquid and a Fermi liquid phase. The introduction of a superconducting order parameter stabilizes the system strongly reducing the phase separation region. A reasonable behaviour of T(c) vs. doping delta is also obtained.
PHASE-SEPARATION AND SUPERCONDUCTIVITY IN THE KONDO-LIKE SPIN-HOLE COUPLED MODEL / N., Cancrini; Caprara, Sergio; Castellani, Claudio; DI CASTRO, Carlo; Grilli, Marco; R., Raimondi. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - STAMPA. - 14:(1991), pp. 597-602. [10.1209/0295-5075/14/6/017]
PHASE-SEPARATION AND SUPERCONDUCTIVITY IN THE KONDO-LIKE SPIN-HOLE COUPLED MODEL
CAPRARA, SERGIO;CASTELLANI, Claudio;DI CASTRO, Carlo;GRILLI, Marco;
1991
Abstract
We have investigated the presence of a phase separation in the phase diagram of a Kondo-like spin-hole coupled model. Within a mean-field analysis we find that the system in the normal phase separates into a spin liquid and a Fermi liquid phase. The introduction of a superconducting order parameter stabilizes the system strongly reducing the phase separation region. A reasonable behaviour of T(c) vs. doping delta is also obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
