Results 21 to 30 of about 13,587 (205)

High‐Performance Millimeter Scale Electromagnetic Generator

open access: yesAdvanced Functional Materials, EarlyView.
A high‐performance millimeter‐scale electromagnetic generator (mmEMG) is developed using magnetic flux concentrator (MFC) films on both coil ends to enhance magnetic flux. Through simulations and experiments, structural and magnetic properties are optimized, achieving a 5.6‐fold electrical output improvement.
Jin Pyo Lee   +5 more
wiley   +1 more source

MAGNETIC AND ACOUSTIC RELAXATIONS IN Mn-FERRITES

open access: yesLe Journal de Physique Colloques, 1988
Magnetic and acoustic losses were measured in single-crystal manganese ferrites at temperatures 80 ÷ 630 K. Relaxation peaks at 230 and 540 K were observed with activation energies of 0.27 ÷ 0.42 and 0.64 ÷ 0.82 eV, respectively. Both peaks are influenced by heat-treatments resulting in different degrees of inversion and vacancy distributions.
Vam Vic Brabers, Y Kawai, Z. Simsa
openaire   +4 more sources

Modulating Oxide‐Based Quantum Materials by Ion Implantation

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how ion implantation, a well developed chip‐technology, enables targeted modulation of oxide‐based quantum materials. This includes tuning of metal‐insulator transitions, magnetism, and superconductivity through selective doping, defect creation, and induced lattice strain. Abstract Ion implantation has emerged as a powerful tool
Andreas Herklotz   +2 more
wiley   +1 more source

State‐of‐the‐Art, Insights, and Perspectives for MOFs‐Nanocomposites and MOF‐Derived (Nano)Materials

open access: yesAdvanced Materials, EarlyView.
Different approaches to MOF‐NP composite formation, such as ship‐in‐a‐bottle, bottle‐around‐the‐ship and in situ one‐step synthesis, are used. Owing to synergistic effects, the advantageous features of the components of the composites are beneficially combined, and their individual drawbacks are mitigated.
Stefanos Mourdikoudis   +6 more
wiley   +1 more source

Ultrahigh Conductive MXene Films for Broadband Electromagnetic Interference Shielding

open access: yesAdvanced Materials, EarlyView.
A new series of nitrogen‐substituted MXene films, spanning the full composition range, achieves record‐high conductivity (35 000 S cm⁻¹) and outstanding electromagnetic interference (EMI) shielding across X, Ka, and W bands, even in ultrathin layers.
Ju‐Hyoung Han   +14 more
wiley   +1 more source

Coaxial Wire Measurements of Ferrite Kicker Magnets [PDF]

open access: yes, 2011
Fast kicker magnets are used to inject beam into and eject beam out of the CERN accelerator rings. These kickers are generally transmission line type magnets with a rectangular shaped aperture through which the beam passes. Unless special precautions are
Barnes, Michael   +6 more
core   +1 more source

Fast minute magnetic field coil for time-resolved nanospintronics

open access: yes, 2014
Nanospintronic and related research often requires the application of fast rising magnetic field pulses in the plane of the studied planar structure. We have designed and fabricated sub-milimeter-sized coils capable of delivering pulses of the magnetic ...
Pawliszak, Łukasz   +2 more
core   +1 more source

Multi‐Scale Modeling of a 3D Soft Magnetoelectric Patch for Wireless Nerve Stimulation

open access: yesAdvanced Materials Interfaces, EarlyView.
Core‐shell, magnetoelectric nanoparticles (MENPs) can serve as wireless electric nano‐sources, thanks to their ability to generate high levels of electricity, when stimulated by a human‐safe external magnetic field. By combining MENPs with soft, biocompatible polymeric matrices and optimizing its composite configuration and electrical behavior via ...
Giulia Suarato   +6 more
wiley   +1 more source

Shape and fission instabilities of ferrofluids in non-uniform magnetic fields

open access: yes, 2017
We study static distributions of ferrofluid submitted to non-uniform magnetic fields. We show how the normal-field instability is modified in the presence of a weak magnetic field gradient.
Vieu, Thibault, Walter, Clément
core   +1 more source

Determination of the Gyrotropic Characteristics of Hexaferrite Ceramics From 75 to 600 GHz [PDF]

open access: yes, 2010
(c) 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Caroopen, S   +5 more
core   +1 more source

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