Period and amplitude halving of persistent spin currents via the Aharonov-Casher effect

Sangchul Oh, Sang il Choi

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We study the parity (electron number) dependence of persistent currents due to the Aharonov-Casher effect for a system of noninteracting many electrons in a one-dimensional mesoscopic ring in the presence of a cylindrically symmetric electric field. The persistent charge and spin currents, and the magnetization for the ground-state of the system are calculated. We find the period and amplitude halving of the persistent spin current due to the Aharonov-Casher effect, which is dual to that of the persistent charge current due to the Aharonov-Bohm effect.

Original languageEnglish
Pages (from-to)219-224
Number of pages6
JournalPhysics Letters A
Issue number3-4
Publication statusPublished - 30 Oct 1995
Externally publishedYes



  • Aharonov-Casher effect
  • Persistent currents

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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