| Issue |
Europhys. Lett.
Volume 36, Number 8, December II 1996
|
|
|---|---|---|
| Page(s) | 613 - 618 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00276-4 | |
| Published online | 01 September 2002 | |
Persistent currents in a Peierls insulator
Department of Applied Physics and Delft Institute for
Microelectronics
and Submicron Technology (DIMES),
Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
Received:
15
August
1996
Accepted:
24
October
1996
Mesoscopic rings with an incommensurate charge density wave (CDW) ground state are investigated theoretically. It is found that the magnetic flux has a pronounced effect on the amplitude of the CDW order parameter. Self-consistent calculations predict a periodic modulation of the order parameter as a function of the flux. In sufficiently small rings the magnetic field can even destroy the CDW ground state. The flux-induced phase transition affects the persistent current and should be observable in the magnetic response.
PACS: 71.45.Lr – Charge-density-wave systems / 03.65.Bz – Foundations, theory of measurement, miscellaneous theories (including Aha ro nov-Bohm effect, Bell inequalities, Berry's phase)
© EDP Sciences, 1996
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