Results 81 to 90 of about 30,381 (297)

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

Advanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour, Younes Mousazade, Simon Diel, Shilendra Kumar Sharma, Tisita Das, Nathália C. Verissimo, Thomas Fischer, Ziyaad Aytuna, Andreas Lichtenberg, Sudip Chakraborty, Marcel Risch, Sanjay Mathur   +11 more
wiley   +1 more source

Solution‐Processed Thin‐Film Transistors With Tunable Temporal Dynamics for Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Solution‐processed CNT and CNT/P3HT ion‐gated transistors exhibit materials‐defined synaptic timescales: fast CNT devices for high‐frequency spiking and slow hybrid devices for temporal integration. Embedding these dynamics into coupled reservoir‐computing and spiking neural network simulations reveals that a Hybrid‐Reservoir / CNT‐SNN architecture ...
Kevin Schnittker, Haoyi Lin, Zahra Bahrami, Strahinja Marinkovic, Sung Hyun Lee, Joseph Andrews   +5 more
wiley   +1 more source

A mechanism study on influence of strong external magnetic field on fracture properties of a ferromagnetic steel

AIP Advances, 2019
For some ferromagnetic metallic materials, measurable influence of strong external magnetic field on their fracture properties has been observed experimentally, i.e., an external magnetic field of large intensity can promote the propagation of the crack.
Zheng Xie, Manru He, Panpan Xu, Qun Li, Cuixiang Pei, Shejuan Xie, Zhenmao Chen   +6 more
doaj   +1 more source

Domain boundary engineering

We review the idea that domain boundaries, rather than domains, can carry information and act as memory devices. Domains are bulk objects; their large response to changing external fields is related to their change in volume, which implies the movement ...
Salje, E. K. H., Zhang, H. L.
core   +1 more source

Magneto–Optical Kerr Effect Microscopy Investigation on Permalloy Nanostructures [PDF]

, 2013
This thesis focuses on the investigation of magnetic domains in ultrasmall permalloy (Ni80Fe20) structures down to nanometre size. Magnetic domains and domain walls in nano objects are often observed using a very high resolution and high power microscope
Bin Haji Hujan, Zulzawawi
core  

Domain wall propagation in magnetic nanowires by spin-polarized current injection

, 2004
We demonstrate movement of a head-to-head domain wall through a magnetic nanowire of permalloy ($\chem{Ni_{81}Fe_{19}}$) simply by passing an electrical current through the domain wall and without any external magnetic field applied.
D. A. Allwood, M. D. Cooke, Cooke, M.D., Allwood, D.A., Vernier, N., N. Vernier, R. P. Cowburn, Atkinson, D., D. Atkinson, Cowburn, ,, P., R.   +10 more
core   +1 more source

Designing Stable Periodic Magnetization Textures by Tailoring Anisotropies and Applying Geometrical Transformation

Advanced Functional Materials, EarlyView.
This work explores the possibility to design stable periodic magnetization textures by transforming a 2D film into a rolled‐up 3D architecture and back. In case of an isotropic exchange‐biased layer architecture, the magnetization encoded in the 3D state evolves into a spin‐spiral pattern with controlled periodicity after unrolling.
Aman Singh, Ivan Soldatov, Rudolf Schäfer, Volker Neu   +3 more
wiley   +1 more source

Reversible and Non-Reversible Transformation of Magnetic Structure in Amorphous Microwires

Nanomaterials, 2020
We provide an overview of the tools directed to reversible and irreversible transformations of the magnetic structure of glass-covered microwires. The irreversible tools are the selection of the chemical composition, geometric ratio, and the stress ...
Alexander Chizhik, Julian Gonzalez, Arcady Zhukov, Przemyslaw Gawronski, Mihail Ipatov, Paula Corte-León, Juan Mari Blanco, Valentina Zhukova   +7 more
doaj   +1 more source

On the Instabilities of the Walker Propagating Domain Wall Solution

, 2013
A powerful mathematical method for front instability analysis that was recently developed in the field of nonlinear dynamics is applied to the 1+1 (spatial and time) dimensional Landau-Lifshitz-Gilbert (LLG) equation. From the essential spectrum of the LLG equation, it is shown that the famous Walker rigid body propagating domain wall (DW) is not ...
Hu, Bin, Wang, Xiangrong
openaire   +2 more sources