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Entire Period Halving of Persistent Current in a Mesoscopic Double-Ring System |
| WANG Hai-Jun1;YI Xue-Xi2,3;BA Xin-Wu1 |
| 1Department of Chemistry, Hebei University, Baoding 071002
2Institute of Theoretical Physics, Chinese Academy of
Sciences, Beijing 100080
3Institute of Theoretical Physics, Northeast Normal
University, Changchun 130024 |
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| Cite this article: |
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WANG Hai-Jun, YI Xue-Xi, BA Xin-Wu 2001 Chin. Phys. Lett. 18 1635-1637 |
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Abstract For the non-interacting electrons confined by a mesoscopic double-ring with a magnetic flux threading its center, we consider the problem of persistent current at zero and finite temperature. Furthermore, the tight-binding model is applied to give the expression of persistent current in this system. It is shown that in this double-ring system, the phenomena of entire period halving will occur.
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| Keywords:
72.15.Nj
68.65.-k
03.65.Vf
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Published: 01 December 2001
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| PACS: |
72.15.Nj
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(Collective modes (e.g., in one-dimensional conductors))
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68.65.-k
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(Low-dimensional, mesoscopic, nanoscale and other related systems: structure and nonelectronic properties)
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03.65.Vf
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(Phases: geometric; dynamic or topological)
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