Small size tunneling contacts with superconductorsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Tunneling conductivity in SC-I-metal tip junction of nanometer scale in
the presence of an impurity state is examined theoretically by means of
diagram technique for nonequilibrium processes. The theory takes into
account two important factors: modification of the initial electronic
spectrum of superconductor and finite relaxation rates for a
nonequilibrium electronic density. The proposed model can be applied to
various experimental situations, including STM/STS investigations of a
clean SC surface. It is shown that in many cases dI/dV dependencies are
essentially modified and gap structure is distort