Magneto-transport in a binary alloy ring
Abstract
Magneto-transport properties are investigated in a binary alloy ring subjected to an Aharonov-Bohm (AB) flux φ within a single-band non-interacting tight-binding framework. In the first part, we expose analytically the behavior of persistent current in an isolated ordered binary alloy ring as functions of electron concentration Ne and AB flux φ. While, in the second part of the article, we discuss electron transport properties through a binary alloy ring attached to two semi-infinite one-dimensional metallic electrodes. The effect of impurities is also analyzed. From our study we propose that under suitable choices of the parameter values the system can act as a p-type or an n-type semiconductor.
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