Results 91 to 100 of about 33,110 (327)

Poling effect on distribution of quenched random fields in a uniaxial relaxor ferroelectric

, 2005
The frequency dependence of the dielectric permitivity's maximum has been studied for poled and unpoled doped relaxor strontium barium niobate $Sr_{0.61}Ba_{0.39}Nb_{2}O_{6}:Cr^{3+}$ (SBN-61:Cr). In both cases the maximum found is broad and the frequency
Buse K., C Aragó, Lehnen P., Lehnen P., M. I Marqués, Miller M. J., Samara G. A., Smolenskii G. A., Smolenskii G. A., Uchino K., Yue X.   +10 more
core   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi, Ebrahim Norouzi, Kostiantyn Hubaiev, Jörg Waitelonis, Harald Sack   +4 more
wiley   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

X-ray-induced piezoresponse during X-ray photon correlation spectroscopy of PbMg1/3Nb2/3O3

Journal of Synchrotron Radiation
X-ray photon correlation spectroscopy (XPCS) holds strong promise for observing atomic-scale dynamics in materials, both at equilibrium and during non-equilibrium transitions.
Dina Sheyfer, Hao Zheng, Matthew Krogstad, Carol Thompson, Hoydoo You, Jeffrey A. Eastman, Yuzi Liu, Bi-Xia Wang, Zuo-Guang Ye, Stephan Rosenkranz, Daniel Phelan, Eric M. Dufresne, G. Brian Stephenson, Yue Cao   +13 more
doaj   +1 more source

Peculiar Bi-ion dynamics in Na1/2Bi1/2TiO3 from terahertz and microwave dielectric spectroscopy

, 2014
Dynamics of the main dielectric anomaly in Na1/2Bi1/2TiO3 (NBT) was studied by time-domain THz and microwave spectroscopy, using also previously published data and their new overall fits.
Banys, Juras, Bovtun, Viktor, Dittmer, Robert, Kamba, Stanislav, Nuzhnyy, Dmitry, Pasciak, Marek, Petzelt, Jan, Rodel, Jurgen, Svirskas, Sarunas   +8 more
core   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

PbTiO₃ modificado con Ca: de la cerámica a la lámina

Boletín de la Sociedad Española de Cerámica y Vidrio, 2004
A review on calcium modified lead titanate, (Pb1-xCax)TiO3 bulk ceramics, through its structural and ferroelectric properties is described as well as the interest for the preparation of these materials as thin films.
Calzada, M. L., Maurer, E., Jiménez, R., Alemany, C., Mendiola, J.   +4 more
doaj  

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Magnetoelectric phenomena in single-phase and composite systems

Boletín de la Sociedad Española de Cerámica y Vidrio, 2005
In the present review, the main phenomenology and problematic related some of the most interesting magnetoelectric systems (materials having in the same phase magnetic and ferroelectric order and interaction between them, giving rise to the ...
Mitoseriu, Liliana
doaj  

EXAFS study of lead-free relaxor ferroelectric BaTi(1-x)Zr(x)O3 at the Zr K-edge

, 2006
Extended X-ray absorption fine structure (EXAFS) experiments at the Zr K-edge were carried out on perovskite relaxor ferroelectrics BaTi(1-x)Zr(x)O3 (BTZ) (x = 0.25, 0.30, 0.35), and on BaZrO3 for comparison. Structural information up to 4.5 A around the
A. Simon, B. Noheda, C. Laulhé, D. Haskel, F. Hippert, J. Kreisel, J. L. Hazemann, J. Ravez, L. A. Bugaev, L. E. Cross, L. E. Cross, M. Maglione, M. Newville, P. E. Petit, P. Sciau, R. H. Mitchell, R. M. Hazen, T. B. Wu, V. Nassif   +18 more
core   +3 more sources