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Electronic thermal capacity in one-dimensional mesoscopic rings

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Il Nuovo Cimento D

Summary

We have investigated the Aharonov-Bohm (AB) effects of electronic thermal capacityC v in a one-dimensional normal ring using the free-electron model. The results show that the thermal capacity is an oscillation function of external magnetic flux with periods ϕ0=hc/e, ϕ0/2, ϕ0/3,... The amplitude of the capacity fluctuation decreases when temperature increases forT>3T * (T *=ħ V F/(K BπL)). We suggest an appropriate temperatureT∼3T * to observe in experiment the capacity-flux characteristic for metallic rings.

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Authors and Affiliations

  1. CCAST (World Laboratory), P.O. Box 8730, 100080, Beijing, PRC

    Xin-E Yang

  2. Department of Applied Physics, Tianjin University, 300072, Tianjin, PRC

    Xin-E Yang

  3. Department of Mathematics, Tianjin University, 300072, Tianjin, PRC

    Shu-Fen Yu

Authors
  1. Xin-E Yang
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  2. Shu-Fen Yu
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Yang, XE., Yu, SF. Electronic thermal capacity in one-dimensional mesoscopic rings. Il Nuovo Cimento D 18, 1287–1293 (1996). https://doi.org/10.1007/BF02453263

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  • DOI: https://doi.org/10.1007/BF02453263

PACS 72.15.Eb

PACS 72.20.Fr

PACS 73.20.Dx

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