Open AccessInvestigation on electro-strain effect in Rh-doped BaTiO3 single crystals
Author(s) -
Zhou Dan,
Lee Di,
Ting He,
Feng Zu-Yong,
Huaizhe Xu,
Haosu Luo
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.4053
Subject(s) - materials science , strain (injury) , hysteresis , doping , crystal (programming language) , ageing , electric field , field (mathematics) , condensed matter physics , composite material , optoelectronics , physics , medicine , mathematics , quantum mechanics , biology , pure mathematics , computer science , genetics , programming language
The electric-field-induced strain in Rh-doped BaTiO3 single crystals increases with increasing ageing time at 80℃. After 27 days' ageing, the strain can reach 1.11% under bipolar field cycling conditions. However, the strain under mo nopolar field cycles is strongly dependent on the drive frequency and reaches as high as 0.95% at frequency of 0.01Hz. The hysteresis loop (P-E curve) of the aged sample is similar to a wasp-waisted hysteresis loop. Ageing can significant ly improve the electro-strain effect in the Rh-doped BaTiO3 crystal a nd make t he BaTiO3 crystal a promising and lead-free material for novel applic ations in ultra-large strain and nonlinear actuators.