Personne
Jin Wang
Cette personne n’est plus à l’EPFL
Publications associées (16)
Mechanism of hydrothermal growth of ferroelectric PZT nanowires
Nava Setter, Silviu Cosmin Sandu, Jin Wang, Alexandre Durussel, Mtabazi Geofrey Sahini
The formation mechanism of hydrothermally grown monocrystalline ferroelectric PZT nanowires is investigated. It is shown that the growth proceeds via a two-step process. Particles of the centrosymmetric PX-phase grow initially, having a fibrous morphology ...
2012Size effect in ferroelectrics: Competition between geometrical and crystalline symmetries
Nava Setter, Alexander Tagantsev, Jin Wang
Size effect in ferroelectrics is treated as a competition between the geometrical symmetry of the ferroelectric sample and its crystalline symmetry. Polarization rotation is shown to be a clear finite size effect that results from this competition, which c ...
2011Structure Determination and Compositional Modification of Body-Centered Tetragonal PX-Phase Lead Titanate
Nava Setter, Kurt Schenk, Silviu Cosmin Sandu, Alexandra Sarabando de Carvalho, Jin Wang
The fibrous PX-phase of lead titanate (PT), which can be synthesized by a hydrothermal method, has been studied to clarify its structural aspects on the atomic level. By combining synchrotron X-ray diffraction and electron microscope analysis with a first- ...
2011Ferroelectric Nanowires
Ferroelectric perovskites exhibit superior dielectric, piezoelectric and ferroelectric properties. Architecting ferroelectrics in the small scale holds interest in both application and fundamental research. Compared to their 2D counterparts – thin films, f ...
EPFL2010Synchrotron X-ray diffraction study on a single nanowire of PX-phase lead titanate
Nava Setter, Silviu Cosmin Sandu, Jin Wang
Synchrotron X-ray diffraction (XRD) measurements of Pb-Ti-O fine acicular crystals (nanowires) of the so-called PX-phase have been performed. The theta-2 theta patterns of the nanowires dispersed on substrates with two different geometries indicated that t ...
2010Structural Property and Electric Field Response of a Single Perovskite PbTiO3 Nanowire Using Micro X-ray Beam
The structural property and electric field response of a single perovskite PbTiO3 nanowire were investigated by means of synchrotron X-ray diffraction (XRD) with a micro X-ray beam. XRD 0-20 patterns and Raman spectra confirmed the formation of the perovsk ...
2010