Neutron diffraction data obtained on single crystals of PbZr(1-x)Ti(x)O3 with x=0.325 and x=0.460, which lie on the pseudorhombohedral side of the morphotropic phase boundary, suggest a coexistence of rhombohedral (R3m/R3c) and monoclinic (Cm) domains and that monoclinic order is enhanced by Ti substitution. A monoclinic phase with a doubled unit cell (Cc) is ruled out as the ground state.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.105.207601 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Reinvestigating atomic ordering inK0.5Na0.5NbO3and its impact on ferroelectric properties.
J Phys Condens Matter
January 2025
Department of Physics, Indian Institute of Technology (BHU), Varanasi 221005, India.
In the present work, we reinvestigate the atomic ordering of a Pb-free morphotropic phase boundary (MPB) compositionviz.,K0.5Na0.
View Article and Find Full Text PDFPropyl paraben removal using CuO/ZnO-NPs photocatalyst elaborated via green method.
Environ Sci Pollut Res Int
January 2025
CPRAC Research Center, Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques, Bou-Ismail CP, Tipaza, 42004, Algeria.
The aim of the present work is to investigate the photocatalytic degradation of propyl paraben (propyl para-hydroxybenzoate, PrP) using CuO-ZnO-NPs photocatalyst followed by the identification of the oxidation by-products. The CuO-ZnO-NPs material, synthesized using a green chemistry approach, was used as a photocatalyst for the removal of PrP. The nanoparticles were characterized by XRD, XRF, diffuse reflectance spectroscopy, ATG/DTG, FTIR, SEM-EDX, BET and FRX techniques.
View Article and Find Full Text PDFAn organic-inorganic hybrid ferroelastic with a near-room-temperature phase transition.
Dalton Trans
December 2024
Ordered Matter Science Research Center, Nanchang University, 330031, P. R. China.
Organic-inorganic hybrid metal halides (OIMHs) with ferroelastic phase transition properties have recently attracted great attention due to their widespread application prospects in the fields of energy storage, sensors, switches, . However, most of the hybrid ferroelastics exhibit phase transition points () far beyond room temperature, which may limit their applications in mechanical switches and energy storage for daily working requirements. Herein, we synthesized a new zinc halide OIMH ferroelastic (,)-[BPHD]ZnBr (BPHD = 1,6-bis(piperidine-1-yl) hexa-2,4-diene diamide), which experiences a 2/1̄ type paraelastic-ferroelastic phase transition at a near-room-temperature of 285 K.
View Article and Find Full Text PDFCharge transport channel and nonmetallic plasmon synergistically augment surface reaction kinetics and charge separation for efficient photoelectrochemical hydrogen evolution of CdS/TiN-sensitized FeVO photoanode.
J Colloid Interface Sci
December 2024
School of Science, Minzu University of China, Beijing 100081, China; School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550025, China; Key Laboratory of Low Dimensional Condensed Matter Physics of Higher Educational Institution of Guizhou Province, Guizhou Normal University, Guiyang 550025, China. Electronic address:
Achieving simultaneous enhancement in the light energy utilization efficiency, bulk charge carrier separation and surface charge carrier injection efficiency as well as the surface reaction kinetics of water oxidation is a formidable challenge for photoanodes in photoelectrochemical (PEC) water splitting hydrogen generation. Herein, nanoparticle-assembled flower-like CdS spheres and nonmetallic plasmonic TiN nanoparticles are exploited to successively sensitize FeVO nanoporous film (NPF) photoanode for achieving efficient PEC hydrogen evolution. The sensitization of TiN and CdS simultaneously integrates type-II band structure, surface plasmon resonance and Schottky junction into FeVO NPF photoanode, synergistically achieving simultaneous enhancement in the light energy utilization efficiency, bulk charge carrier separation efficiency, surface reaction kinetics of water oxidation and surface charge carrier injection efficiency.
View Article and Find Full Text PDFThe present perspective accentuates the synthesis of PANI-CuFeO (PCF) nanocomposite, and photocatalytic degradation of methylene blue (MB) dye using a synthesized composite. The stable PCF is confirmed and characterized by analytical techniques, namely, fourier transform infrared (FTIR) and X-ray photoelectron (XPS) spectroscopy, X-ray diffraction (XRD), energy-dispersive X-ray (EDX), scanning electron microscopy (SEM), and vibrating sample magnetometry (VSM) analysis. The synthesized PCF nanocomposites are significantly crystalline in nature, having magnetic saturation of 10.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!