Volume 53, Number 3, February 2001
|Page(s)||342 - 347|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 December 2003|
Mode-locking of incommensurate phase by quantum zero-point energy in the Frenkel-Kontorova model
Department of Physics and Centre for Nonlinear Studies
Hong Kong Baptist University, PRC
2 Department of Physics, University of Houston - Houston TX 77204, USA
3 Department of Physics, National University of Singapore - 119620 Singapore
4 Department of Physics, Lanzhou University - 730000 Lanzhou, PRC
Corresponding author: firstname.lastname@example.org
Accepted: 30 November 2000
In this paper, it is shown that a configuration-modulated system described by the Frenkel-Kontorova model can be locked at an incommensurate phase when the quantum zero-point energy is taken into account. It is also found that the specific heat for an incommensurate phase shows a different parameter dependence in the sliding phase and pinning phase. These findings provide a possible way for experimentalists to verify the phase transition by breaking of analyticity.
PACS: 64.70Rh – Commensurate-incommensurate transitions / 63.70+h – Statistical mechanics of lattice vibrations and displacive phase transitions / 05.50+q – Lattice theory and statistics (Ising, Potts, etc.)
© EDP Sciences, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.