Publication

Relaxor behavior and electromechanical properties of Pb(Mg1/3Nb2/3)O-3 thin films

Nava Setter, Dragan Damjanovic, Andreas Seifert, Zian Kighelman
1998
Journal Articles

Abstract

Pb(Mg1/3Nb2/3)O-3 (PMN) alkoxide precursor solutions were synthesized and used to prepare thin films by spin coating on TiO2/Pt/TiO2/SiO2/Si substrates. Many parameters like the use of homogeneous and stable precursor solutions and appropriate processing were used to greatly reduce the presence of the nonferroelectric pyrochlore phase. Transmission electron microscopy investigations, dielectric, electrostrictive, and direct current field induced piezoelectric measurements were carried out and have shown that PMN thin films exhibit a relaxor-like behavior. (C) 1998 American Institute of Physics. [S0003-6951(98)03142-8].

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https://infoscience.epfl.ch/entities/publication/b4163b34-9d3f-4b6c-a97d-d7aafd3cd49f

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Nava Setter, Dragan Damjanovic, Andreas Seifert, Zian Kighelman
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/b4163b34-9d3f-4b6c-a97d-d7aafd3cd49f

About this result

Related concepts (12)

Transmission electron microscopy

Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. The specimen is most often an ultrathin section less than 100 nm thick or a suspension on a grid. An image is formed from the interaction of the electrons with the sample as the beam is transmitted through the specimen. The image is then magnified and focused onto an imaging device, such as a fluorescent screen, a layer of photographic film, or a sensor such as a scintillator attached to a charge-coupled device.

Electron diffraction

Electron diffraction refers to changes in the direction of electron beams due to interactions with atoms. Close to the atoms the changes are described as Fresnel diffraction; far away they are called Fraunhofer diffraction. The resulting map of the directions of the electrons far from the sample (Fraunhofer diffraction) is called a diffraction pattern, see for instance Figure 1. These patterns are similar to x-ray and neutron diffraction patterns, and are used to study the atomic structure of gases, liquids, surfaces and bulk solids.

Cryogenic electron microscopy

Cryogenic electron microscopy (cryo-EM) is a cryomicroscopy technique applied on samples cooled to cryogenic temperatures. For biological specimens, the structure is preserved by embedding in an environment of vitreous ice. An aqueous sample solution is applied to a grid-mesh and plunge-frozen in liquid ethane or a mixture of liquid ethane and propane. While development of the technique began in the 1970s, recent advances in detector technology and software algorithms have allowed for the determination of biomolecular structures at near-atomic resolution.

Related publications (6)

Relaxor behavior and electromechanical properties of Pb(Mg1/3Nb2/3)O-3 thin films

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