authors |
Bdikin, I; Bystrov, V; Kopyl, S; Lopes, RPG; Delgadillo, I; Gracio, J; Mishina, E; Sigov, A; Kholkin, AL |
nationality |
International |
journal |
APPLIED PHYSICS LETTERS |
keywords |
PIEZOELECTRIC PROPERTIES; ION; WATER |
abstract |
Self-assembled peptide nanotubes (PNT) are unique nanoscale objects having a great potential for a multitude of applications. Strong piezoactivity and polar properties in aromatic dipeptides were recently observed in stand-alone nanotubes using piezoresponse force microscopy and 2(nd) harmonic generation. In this work, we report macroscopic dielectric and polarization vs. field measurements on pressed PNTs before and after annealing at 150 degrees C. The results corroborate nanoscale study and present a clear evidence of ferroelectric-like behaviour and phase transition in this technologically important material. The dielectric constant of PNT pellets obeys apparent Curie-Weiss (CW) law with the CW constant C approximate to 230 degrees C and transition temperature at T approximate to 142 degrees C. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3676417] |
publisher |
AMER INST PHYSICS |
issn |
0003-6951 |
year published |
2012 |
volume |
100 |
issue |
4 |
digital object identifier (doi) |
10.1063/1.3676417 |
web of science category |
Physics, Applied |
subject category |
Physics |
unique article identifier |
WOS:000300064500080
|
ciceco authors
impact metrics
journal analysis (jcr 2019):
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journal impact factor |
3.597 |
5 year journal impact factor |
3.4 |
category normalized journal impact factor percentile |
76.299 |
dimensions (citation analysis):
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altmetrics (social interaction):
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