Results 71 to 80 of about 712 (189)

Emerging applications of rare‐earth fluoride nanocrystals in medicine and biotechnologies

Responsive Materials, Volume 3, Issue 4, November 2025.
Rare‐earth fluoride nanocrystals (REFNCs) exhibit high responsivity and can be used as multi‐modal agents in medicine and theranostics. This review summarizes recent advances in REFNCs, covering their synthesis, structures, luminescent properties, and applications in multi‐modal imaging and photodynamic therapy, highlighting their theranostic potential
Alain Tressaud, Zhichao Wang, Yuqi Tang, Quan Li   +3 more
wiley   +1 more source

Phase Separation and Phase Transitions in Multiferroic K_0.58FeF₃ with the Tetragonal Tungsten Bronze Structure

, 2016
The tetragonal tungsten bronze (TTB) structure multiferroic fluoride K0.58FeF3 (alternatively K3–xFe5F15 (x ≈ 0.1)) has been studied using variable temperature high-resolution synchrotron powder X-ray diffraction.
Anne-Marie Mercier (2133223), Chiu C. Tang (1335222), Marc Leblanc (1484599), Sandra A. Reisinger (2133226), Philip Lightfoot (1628692), Julia E. Parker (1849906), Finlay D. Morrison (2014411)   +6 more
core   +2 more sources

Processamento coloidal de compósitos nanoestruturados metal-cerâmica via moagem de alta energia [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2010Nas últimas décadas o processamento de materiais compósitos tem despertado interesse ...
Vieira Junior, Luiz Eloi
core  

Study on Growth of Tungsten Bronze Phase from Niobate Perovskite Ceramics in Controlled Atmosphere for Photoferroelectric Applications

Advanced Electronic Materials
Recent research has found that by introducing A‐site deficiency into Ba/Ni co‐doped (K,Na)NbO3 ABO3‐type perovskite, a beneficial interface for photoferroelectric applications is formed between the perovskite and tungsten bronze (TB) phases.
Xi Shi, Yang Bai, Christoph Wichmann, Michael Moritz, Michel Kuhfuß, Christian Papp, Neamul H Khansur   +6 more
doaj   +1 more source

Ising-Like Model For Ferroelectric Phase Transitions In Tetragonal Tungsten Bronze Compounds

, 2011
The two-component anisotropic Ising-like model was proposed to model the ferroelectric phase transitions in Tetragonal Tungsten Bronze (TTB) compounds. Using the mean-field approach we reconstructed the phase diagram of the TTB
Arhchoui, H., Luk'yanchuk, I., Taifi, E., El Amraoui, Y., Mezzane, D.   +4 more
core  

Origin and stability of the dipolar response in a family of tetragonal tungsten bronze relaxors

, 2011
A new family of relaxor dielectrics with the tetragonal tungsten bronze structure (nominal composition Ba6M3+Nb9O 30, M3+ = Ga, Sc, or In) were studied using dielectric spectroscopy to probe the dynamic dipole response and correlate this with the crystal
Arnold, Donna C., Finlay D. Morrison, Daoud-Aladine, A., Donna C. Arnold, Morrison, Finlay D., Andrei Rotaru, Rotaru, A., Aziz Daoud-Aladine, Daoud-Aladine, Aziz, Morrison, F.D., Rotaru, Andrei   +10 more
core   +1 more source

The Structure and Thermoelectric Properties of Tungsten Bronze Ba6Ti2Nb8O30 [PDF]

, 2019
Tungsten bronze structured materials have attracted attention as possible thermoelectrics because of their complex crystal structure. In this work, a new thermoelectric ceramic with tetragonal tungsten bronze (TB) structure, Ba6Ti2Nb8O30 (BTN) was ...
Reece, Michael J., Azough, Feridoon, Ramasse, QM, Freer, R, Reece, MJ, Amit Mahajan, Chen, K, Kepaptsoglou, Demie M., Sarah J. Day, Dursun Ekren, Day, Sarah J., Robert Freer, Kan Chen, Jiang, D, Ekren, Dursun, Dongting Jiang, Ramasse, Quentin M., Mahajan, A, Michael J. Reece, Jiang, Dongting, Day, SJ, Ekren, D, Feridoon Azough, Demie M. Kepaptsoglou, Freer, Robert, Mahajan, Amit, Kepaptsoglou, DM, Quentin M. Ramasse, Azough, F, Chen, Kan   +29 more
core   +1 more source

Effects of W/Co co-doping on the structural, multiferroic, dielectric and optical properties of filled tungsten bronze Ba4Sm2Fe2Nb8O30 ceramics

Results in Physics
The structural, magnetic, ferroelectric, dielectric, magneto-dielectric and optical properties of W/Co co-substituted tungsten bronze Ba4Sm2Fe2Nb8-3x(W2Co)xO30 (0 ≤ x ≤ 0.3) ceramics were studied in detail.
Xuzhong Zuo, Dongpo Song, Yifeng Zheng, Zhenzhen Hui, Teng Guo, Wei Dong, Enjie He, Yanfu Qin, Banggui Guan, Jie Yang, Xuebin Zhu, Jianming Dai   +11 more
doaj   +1 more source

Superconducting Properties of the K$_{x}$WO$_{3}$ Tetragonal Tungsten Bronze and the Superconducting Phase Diagram of the Tungsten Bronze Family

, 2014
We report the superconducting properties of the K$_{x}$WO$_{3}$ tetragonal tungsten bronze. The highest superconducting transition temperature ($T_{c}=2.1$K) was obtained for K$_{0.38}$WO$_{3}$. $T_{c}$ decreases linearly with increasing K content. Using the measured values for the upper critical field $H_{c2}$, and the specific heat $C$, we estimate ...
Haldolaarachchige, Neel, Gibson, Quinn, Krizan, Jason, Cava, R. J.   +3 more
openaire   +2 more sources

Transmission electron microscopy evidence of a new tetragonal tungsten bronze superstructure

, 1997
Electron diffraction patterns of M56(O, F)156 (M = Mg, Nb, W) (along [001]) exhibit eight additional spots arranged on an octagon around every reflection of the tetragonal tungsten bronze-type (TTB) substructure.

core   +1 more source