Dielectric Properties and Phase Transition in CaCu3Ti4O12at High Temperatures

2008 ◽  
Vol 47 (9) ◽  
pp. 7753-7756 ◽  
Author(s):  
Akira Onodera ◽  
Masaki Takesada ◽  
Keiichi Kawatani ◽  
Shogo Hiramatsu
Keyword(s):  
Phase Transition ◽  
Dielectric Properties ◽  
High Temperatures

scholarly journals Reconfigurable artificial microswimmers with internal feedback

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
L. Alvarez ◽  
M. A. Fernandez-Rodriguez ◽  
A. Alegria ◽  
S. Arrese-Igor ◽  
K. Zhao ◽  
...  
Keyword(s):  
Phase Transition ◽  
Dielectric Properties ◽  
Light Absorption ◽  
Local Heating ◽  
Volume Phase Transition ◽  
Active Materials ◽  
Colloidal Clusters ◽  
Robotic Devices ◽  
Dynamical Control ◽  
Synthetic Models

AbstractSelf-propelling microparticles are often proposed as synthetic models for biological microswimmers, yet they lack the internally regulated adaptation of their biological counterparts. Conversely, adaptation can be encoded in larger-scale soft-robotic devices but remains elusive to transfer to the colloidal scale. Here, we create responsive microswimmers, powered by electro-hydrodynamic flows, which can adapt their motility via internal reconfiguration. Using sequential capillary assembly, we fabricate deterministic colloidal clusters comprising soft thermo-responsive microgels and light-absorbing particles. Light absorption induces preferential local heating and triggers the volume phase transition of the microgels, leading to an adaptation of the clusters’ motility, which is orthogonal to their propulsion scheme. We rationalize this response via the coupling between self-propulsion and variations of particle shape and dielectric properties upon heating. Harnessing such coupling allows for strategies to achieve local dynamical control with simple illumination patterns, revealing exciting opportunities for developing tactic active materials.

Phase transition, ferroelectric, and dielectric properties of layer-structured perovskite CaBi3Ti3O12−δ thin films

2001 ◽  
Vol 79 (3) ◽  
pp. 397-399 ◽  
Author(s):  
Kazumi Kato ◽  
Kazuyuki Suzuki ◽  
Kaori Nishizawa ◽  
Takeshi Miki
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Dielectric Properties

Domain structure, phase transition and dielectric properties of ferroelastics of the NaFe(MoO4)2type

1978 ◽  
Vol 21 (1) ◽  
pp. 579-581 ◽  
Author(s):  
E. V. Sinyakov ◽  
E. F. Dudnik ◽  
T. M. Stolpakova ◽  
O. L. Orlov
Keyword(s):  
Phase Transition ◽  
Dielectric Properties ◽  
Domain Structure ◽  
Structure Phase ◽  
Structure Phase Transition

Dielectric properties and phase transition of zinc tris(thiourea) sulfate single crystal

2008 ◽  
Vol 403 (18) ◽  
pp. 3244-3247 ◽  
Author(s):  
S. Moitra ◽  
S. Bhattacharya ◽  
T. Kar ◽  
A. Ghosh
Keyword(s):  
Phase Transition ◽  
Dielectric Properties ◽  
Single Crystal

Dielectric relaxations and phase-transition-like behavior in SmAlO3 ceramics at high temperatures

2013 ◽  
Vol 48 (20) ◽  
pp. 7294-7299 ◽  
Author(s):  
Changmei Lei ◽  
Chunchang Wang ◽  
Teng Li ◽  
Guojing Wang ◽  
Xiaohong Sun ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperatures ◽  
Dielectric Relaxations
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