Persistent current in one-dimensional mesoscopic ring with a stub |
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Authors: | L.G. Wang |
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Affiliation: | College of Science, Shenyang University, Shenyang 110044, China |
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Abstract: | The transport property of electron in a quantum ring-stub system is investigated through quantum waveguide theory. The persistent current is produced and controlled by tuning the length of the stub even in the absence of the magnetic field, and it can be observed if one tuning the Fermi energy near the antiresonance or the Fano resonance of the transport current. |
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Keywords: | 73.21.Hb 73.23.Ra 73.23.Ad 73.23.&minus b |
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