Results 61 to 70 of about 4,203,439 (304)

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

PARAMAGNETIC PROPERTIES OF Cox(Cu0.5Ga0.5)1–xCr2S4 SOLID SOLUTIONS

Конденсированные среды и межфазные границы, 2017
The magnetic properties of Cox(Cu0.5Ga0.5)1–xCr2S4 solid solutions were measured at 5–300 K in constant magnetic fi elds of 0.1 and 45 kOe. Key magnetostatic properties of the analysed samples were determined.
Aminov Telman G., Shabunina Galina G., Busheva Elena V., Novotortsev Vladimir M.   +3 more
doaj   +1 more source

Curie Temperature of Disordered Alloys

Acta Physica Polonica A, 1997
The analysis of numerous crystallographic, Mossbauer, and magnetic experiments on the disordered alloys Fe-M (M = Al, Si, Ga, Sn) allowed us to describe their general qualitative peculiarities in the framework of the twoband Hubbard model [1, 2]. Subsequent reduction of the Hamiltonian is justified at concentrations of Μ lower than 10 at.% [3], the ...
A.K. Arzhnikov, L.V. Dobysheva
openaire   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

Structural and Magnetic Properties of Zinc and Silicon Oxides Doped Cu Ferrite for Temperature Controller Devices

High Temperature Materials and Processes, 2015
The effects of Si+4 and Zn+2 substitutions on the structural and magnetic properties of Cu1−xZnx+ySiyFe2−2yO4 ferrites prepared by double sintering ceramic technique have been investigated.
Hessien M. M., Ahmed E. M., Hemeda O. M.
doaj   +1 more source

Preparation and Characterization of Self-Assembled Poly(l-Lactide) on the Surface of β-Tricalcium Diphosphate(V) for Bone Tissue Theranostics

Nanomaterials, 2020
This work was aimed to obtain and characterize the well-defined biocomposites based on β-tricalcium diphosphate(V) (β-TCP) co-doped with Ce3+ and Pr3+ ions modified by poly(l-lactide) (PLLA) with precise tailored chain length and different ...
Jan A. Zienkiewicz, Adam Strzep, Dawid Jedrzkiewicz, Nicole Nowak, Justyna Rewak-Soroczynska, Adam Watras, Jolanta Ejfler, Rafal J. Wiglusz   +7 more
doaj   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

Advanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar, María del Carmen Giménez‐López   +1 more
wiley   +1 more source

Large-scale epitaxy of two-dimensional van der Waals room-temperature ferromagnet Fe5GeTe2

npj 2D Materials and Applications, 2022
In recent years, two-dimensional van der Waals materials have emerged as an important platform for the observation of long-range ferromagnetic order in atomically thin layers.
Mário Ribeiro, Giulio Gentile, Alain Marty, Djordje Dosenovic, Hanako Okuno, Céline Vergnaud, Jean-François Jacquot, Denis Jalabert, Danilo Longo, Philippe Ohresser, Ali Hallal, Mairbek Chshiev, Olivier Boulle, Frédéric Bonell, Matthieu Jamet   +14 more
doaj   +1 more source

CURIE-TEMPERATURE "SLATER-PAULING CURVE"

, 1988
The systematic variation of the Curie-temperature "Slater-Pauling curve" has been explained for the first time on the basis of the finite-temperature theory of the local environment effect. The peculiarity of the Curie temperatures in Fe-V, Fe-Ni, and Ni-
Y. Kakehashi, O. Hosohata
core   +1 more source