Results 31 to 40 of about 10,549 (210)

Structural phase transition and dielectric relaxation in Pb(Zn1/3Nb2/3)O3 single crystals [PDF]

, 2004
The structure and the dielectric properties of Pb(Zn1/3Nb2/3)O3 (PZN) crystal have been investigated by means of high-resolution synchrotron x-ray diffraction (with an x-ray energy of 32 keV) and dielectric spectroscopy (in the frequency range of 100 Hz -
A A Bokov, B Noheda, Bokov A A, Bokov A A, Bokov A A, Bokov A A, Bokov A A, Bokov A A, Calvarin G, Cross L E, G Shirane, Lebon A, Nomura S, Smolenskii G A, Y-H Bing, Ye Z-G, Ye Z-G, Ye Z-G, Ye Z-G, Yokomizo Y, Z-G Ye   +20 more
core   +3 more sources

Freezing of the local dynamics in the relaxor ferroelectric PZN-4.5PT

, 2012
We report measurements of the neutron diffuse scattering in a single crystal of the relaxor ferroelectric material 95.5%Pb(Zn1/3Nb2/3)O3-4.5%PbTiO3 (PZN-4.5%PT).
Gehring, P. M., Mamontov, E., Stock, C., Wen, Jinsheng, Xu, Guangyong, Xu, Zhijun   +5 more
core   +1 more source

Light scattering study of acoustic phonon modes and central peaks in Pb[(Mg1/3Nb2/3)0.45Ti0.55]O3 single crystals [PDF]

, 2007
The dynamic polar nanoregions (PNRs) which form below the Burns temperature and determine the unique properties of relaxor ferroelectrics were predicted [Tinte et al., Phys. Rev. Lett.
Bokov Alexei A., Ko Jae-Hyeon, Kojima Seiji, Ye Zuo-Guang, 小島 誠治   +4 more
core   +1 more source

LIXÃO DO AURÁ EM BELÉM-PA E A POLÍTICA NACIONAL DE RESÍDUOS SÓLIDOS: TRATAMENTO JURÍDICO DADO AOS CATADORES

Revista Eletrônica Direito e Política, 2015
A Política Nacional de Resíduos Sólidos (PNRS), normatizada pela Lei nº 12.305/2010 e regulamentada pelo Decreto nº 7.404/2010, instituiu diversas incumbências aos gestores públicos dentre elas a de inserir os catadores de resíduos sólidos nesse ...
Glauber De Souza Dantas, Syglea Rejane Magalhães Lopes, Altem Nascimento Pontes   +2 more
doaj   +1 more source

High-Temperature Dielectric Response of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3: Does Burns Temperature Exist in Ferroelectric Relaxors?

, 2010
It has been considered that polar nanoregions in relaxors form at Burns temperature Td approx 600 K. High-temperature dielectric investigations of Pb(Mg1/3Nb2/3)O3 (PMN) and 0.7PMN-0.3PbTiO3 reveal, however, that the dielectric dispersion around 600 K ...
Bobnar, Vid, Filipic, Cene, Kutnjak, Zdravko, Levstik, Adrijan   +3 more
core   +1 more source

Production and comparison of mature single-domain ‘trefoil’ peptides pNR-2/pS2 Cys58 and pNR-2/pS2 Ser58 [PDF]

Biochemical Journal, 1995
The preparation and purification of recombinant mature pNR-2/pS2, a single-domain member of the ‘trefoil’ family of cysteine-rich secreted proteins, is described. Analysis of recombinant pNR-2/pS2 by ion-exchange chromatography showed that it was heterogeneous.
Chadwick MP, May FEB, Westley BR
openaire   +2 more sources

Kinetic Regimes of Hydrogen Absorption in Thin Films

Advanced Functional Materials, EarlyView.
Knowledge of the hydrogen incorporation mechanisms in thin layers in relation to the amount absorbed is essential to design coatings and devices compatible with hydrogen‐based technologies. A combination of simultaneous in situ methods gives detailed insight into the hydrogenation of a prototypical hydrogen absorber layer in a time‐dependent manner ...
Laura Guasco, Sabine Pütter, Yury N. Khaydukov, Luca Silvi, Mariano A. Paulin, Attila Csik, Thomas Keller, Bernhard Keimer   +7 more
wiley   +1 more source

Electric-Field Control in Phosphorene-Based Heterostructures

Nanomaterials, 2022
Phosphorene is a graphene-like material with an intermediate band gap, in contrast to zero-gap graphene and large-gap dichalcogenides or hexagonal boron nitride (hBN), which makes it more suitable for nanoelectronic devices.
Calin-Andrei Pantis-Simut, Amanda Teodora Preda, Nicolae Filipoiu, Alaa Allosh, George Alexandru Nemnes   +4 more
doaj   +1 more source

Record Energy Storage Performance Metrics in Ferroelectric Hafnia‐Based Films through Heterostructure Design

Advanced Functional Materials, EarlyView.
Dielectric capacitors typically struggle to achieve both high energy storage density and high efficiency at applied voltages below 10 V. Here, we address this challenge by introducing a novel hybrid fluorite/perovskite heterostructure design that combines ultra‐high recoverable energy storage density with efficient energy release (Uf ≈ 1016 J/cm3), at ...
Ampattu R. Jayakrishnan, Nuno Estrócio, Inês Silva, Raluca Negrea, Marian C. Istrate, Koppole C. Sekhar, Luís Marques, Judith L. MacManus‐Driscoll, Ignasi Fina, Florencio Sánchez, José P. B. Silva   +10 more
wiley   +1 more source

Superparamagnetism induced by polar nanoregions in relaxor ferroelectric (1$-$$x$)BiFeO$_{3}$-$x$BaTiO$_{3}$

, 2011
A new class of superparamagnetism was found in relaxor ferroelectric 2/3BiFeO$_{3}$-1/3BaTiO$_{3}$. The size of the magnetic particle, estimated from the superparamagnetic magnetization curve, coincides with the size of the polar nanoregion (PNR), which ...
Hirota, Kazuma, Matsuura, Masato, Soda, Minoru, Wakabayashi, Yusuke   +3 more
core   +1 more source