356 citations · 1.1k across the 44 of their papers we have counts for
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Effect of impurity on current magnification property of mesoscopic open rings
T. P. Pareek, P. Singha Deo, A. M. Jayannavar
We have considered an open system consisting of a metallic ring coupled to two electron reservoirs. We have recently shown that in the presence of a transport current, circulating…
Revisiting Thouless conductance formula
P. Singha Deo
It was shown using perturbation theory[1] that Thouless energy Ec for a quantum system scales linearly with the conductance of the system. We derive in an alternate way in 1-D that…
Topological effects on magnitude of persistent current in a ring
P. Singha Deo
We show that defects in 1D rings decrease the conductance (when the ring is opened up) many more times than it decreases the persistent currents. This means that the states in such…
How general is Legett's conjecture for a mesoscopic ring?
P. Singha Deo
It has been shown[19] that in a loop of length u to which a single stub of length v is attached (fig. 1 in ref. 19), the parity effect is completely destroyed when v/u. It was…
CURRENT MAGNIFICATION AND CIRCULATING CURRENTS IN MESOSCOPIC RINGS
A. M. Jayannavar, P. Singha Deo, T. P. Pareek
We show that several novel effects related to persistent currents can arise in open systems, which have no analogue in closed or isolated systems. We have considered a system of a…
Persistent Currents in the Presence of a Transport Current
A. M. Jayannavar, P. Singha Deo
We have considered a system of a metallic ring coupled to two electron reservoirs. We show that in the presence of a transport current, the persistent current can flow in a ring, e…