| Issue |
Europhys. Lett.
Volume 55, Number 1, July 2001
|
|
|---|---|---|
| Page(s) | 1 - 5 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2001-00372-y | |
| Published online | 01 December 2003 | |
Stochastic resonance induced by random fields in ferroelectrics
1
Department of Physics, Tsinghua University -
Beijing 100084, PRC
2
Center for Advanced Study, and Department of Physics
Tsinghua University - Beijing 100084, PRC
3
State Key Laboratory of New Ceramics and Fine Processing
Department of Materials Science and Engineering
Tsinghua University - Beijing 100084, PRC
Corresponding author: zrliu@phys.tsinghua.edu.cn
Received:
9
January
2001
Accepted:
27
April
2001
A stochastic resonance in ferroelectrics induced by spatial noise (electric random fields) is presented. Starting from a microscopic Hamiltonian of a multiple potential well system subject to an external field and internal noise, we demonstrate that the susceptibility, the phonon occupancy and the overcooled temperature show resonant amplifications induced by spatially random fields.
PACS: 02.50.-r – Probability theory, stochastic processes, and statistics / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 77.80.-e – Ferroelectricity and antiferroelectricity
© EDP Sciences, 2001
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