INVESTIGADORES
FASANO Yanina
congresos y reuniones científicas
Título:
Size-induced depression of first-order transition lines and entropy-jump in extremely-layered nanocrystalline vortex matter
Autor/es:
M. I. DOLZ; Y. FASANO; N. R. CEJAS BOLECEK; H. PASTORIZA; M. KONCZYKOWSKI
Lugar:
Rosario
Reunión:
Encuentro; Poster presentation (sin mi participación) en el XV Encuentro de Superficies y materiales nanoestructurados NANO 2015; 2015
Institución organizadora:
IFIR, Rosario
Resumen:
We detect the persistence of the solidification and order-disorder first-order transitionlines in the phase diagram of nanocrystalline Bi2Sr2CaCu2O8 vortex matter down to a systemsize of less than hundred vortices. The temperature-location of the vortex solidificationtransition line is not altered by decreasing the sample size although there is a depletion of theentropy-jump at the transition with respect to macroscopic vortex matter. The solid orderdisorderphase transition field HSP moves upward on decreasing the system size due to theincrease of vortices entailing a decrease on the average vortex binding energy.
