Abstract:
The main objective of this work is to study the superconductivity of nanosize nio
bium(Nb). The correlation between the electron-phonon coupling parameter(>.), the
Coulomb's pseudopotential(p,*) and the transition temperature at reduced scales is
)
determined by using the Mcmillan's strong-coupling theory. Using the 'strong coupling
theory',
the size dependance of the transition temperature of superconducting
nanosize Niobium (Nb) is derived. The expression for transition temperature has
been determined and plotted as a function of the electron-phonon coupling parame
ter and t~e Coulomb's pseudopotential for superconducting nanosize Niobium. The
dependance of the critical temperature (T
rameter >. is seen in the graph.
c
) with the electron-phonon coupling pa
Key words: Mcmillan equation, transition temperature and nanosize
Niobium.
