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http://hdl.handle.net/10773/19512
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Isakov, Dmitry | pt |
dc.contributor.author | Vasilev, Semen | pt |
dc.contributor.author | Gomes, Etelvina de Matos | pt |
dc.contributor.author | Almeida, Bernardo | pt |
dc.contributor.author | Shur, Vladimir Ya | pt |
dc.contributor.author | Kholkin, Andrei L. | pt |
dc.date.accessioned | 2017-12-07T19:15:17Z | - |
dc.date.available | 2017-12-07T19:15:17Z | - |
dc.date.issued | 2016 | pt |
dc.identifier.issn | 0003-6951 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/19512 | - |
dc.description.abstract | Potential ferroelectricity in charge-transfer organic materials is often masked by the intrinsic conductivity. Here, we report the compelling evidence of ferroelectricity in organic pi-conjugated meta-nitroaniline (m-NA) crystals as shown by the local electromechanical measurements using the piezoresponse force microscopy (PFM) technique. m-NA is a charge-transfer molecular material with the exceptional optical non-linearity and perceptible conductivity along the crystallographic polar axis. While standard Sawyer-Tower measurements revealed an apparently lossy-dielectric hysteresis, The PFM switching spectroscopy indicated clear ferroelectric behaviour in this technologically important multifunctional material. Further study of the pyroelectric properties in m-NA crystals confirmed their high spontaneous polarization of 18 mu C/cm(2) at room temperature, comparable to the best known organic ferroelectrics. Published by AIP Publishing. | pt |
dc.language.iso | eng | pt |
dc.publisher | AMER INST PHYSICS | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147332/PT | pt |
dc.rights | openAccess | por |
dc.subject | PIEZORESPONSE FORCE MICROSCOPY | pt |
dc.subject | MOLECULAR-CRYSTALS | pt |
dc.subject | THIN-FILMS | pt |
dc.subject | GLYCINE | pt |
dc.subject | MORPHOLOGY | pt |
dc.subject | MNA | pt |
dc.title | Probing ferroelectric behaviour in charge-transfer organic meta-nitroaniline | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.issue | 16 | pt |
degois.publication.title | APPLIED PHYSICS LETTERS | pt |
degois.publication.volume | 109 | pt |
dc.relation.publisherversion | 10.1063/1.4965710 | pt |
dc.identifier.doi | 10.1063/1.4965710 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Probing ferroelectric behaviour in charge-transfer organic meta-nitroaniline_10.10631.4965710.pdf | 756.88 kB | Adobe PDF | View/Open |
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