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ORNL microscopy yields first proof of ferroelectricity in simplest amino acid
Date:4/19/2012

this electromechanical conversion."

The study, published in Advanced Functional Materials, builds on previous research at ORNL's CNMS, where Kalinin and others are developing new tools such as the piezoresponse force microscopy used in the experimental study of glycine.

"It turns out that piezoresponse force microsopy is perfectly suited to observe the fine details in biological systems at the nanoscale," Kalinin said. "With this type of microscopy, you gain the capability to study electromechanical motion on the level of a single molecule or small number of molecular assemblies. This scale is exactly where interesting things can happen."

Kholkin's lab grew the crystalline samples of glycine that were studied by his team and by the ORNL microscopy group. In addition to the experimental measurements, the team's theorists verified the ferroelectricity with molecular dynamics simulations that explained the mechanisms behind the observed behavior.


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Contact: Morgan McCorkle
mccorkleml@ornl.gov
865-574-7308
DOE/Oak Ridge National Laboratory
Source:Eurekalert  

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