Results 21 to 30 of about 2,372 (184)
Wearable Magnetic Field Sensor with Low Detection Limit and Wide Operation Range for Electronic Skin Applications. [PDF]
Adv Sci (Weinh)A flexible magnetic sensor with low detection limit and wide measuring range is reported, realized by the anisotropy of the giant magneto‐impedance effect of amorphous wire. The sensor can detect the magnetic field from 22 nT to 400 mT, and simultaneously monitor weak magnetic fields such as geomagnetism and large magnetic fields which come from ...
Li S +14 more
europepmc +2 more sources
Magneto-X Effects in Magnetic Soft Materials and Their Applications. [PDF]
Adv Sci (Weinh)This review systematically explores magnetic soft materials (MSMs), a novel class of composites that transform under magnetic fields. It catalogs fundamental “Magneto‐X” effects, classifies materials by their matrix and magnetic fillers, and highlights transformative applications in soft robotics, biomedical devices, flexible electronics, etc. Finally,
Xiang Z +5 more
europepmc +2 more sources
Spin Hall magnetoimpedance [PDF]
Physical Review B, 2014 The recently discovered spin Hall magnetoresistance effect electrically probes pure spin current flow across a ferrimagnetic insulator/normal metal bilayer interface. While usually the DC electrical resistance of the bilayer is measured as a function of the magnetization orientation in the magnetic insulator, we here present magnetoimpedance ...
Lotze, Johannes +3 more
openaire +2 more sources
Magnetism, 2023 It was observed recently that the giant magnetoimpedance (GMI) effect in Fe-rich glass-coated amorphous microwires with positive magnetostriction can be improved significantly by means of post-annealing.
Nikita A. Buznikov
doaj +1 more source
Perspectives in Giant Magnetoimpedance Magnetometry [PDF]
Sensor Letters, 2009 Approximate expressions are obtained for the sensitivity of a GMI wire. The optimal conditions for high sensitivity are discussed in terms of material and external parameters, such as dc field, dc current bias, driving current amplitude and frequency. We show that the systematic reduction of the anisotropy field is not necessarily the best approach to ...
Menard, D. +6 more
openaire +3 more sources
Giant magnetoimpedance sensors [PDF]
IEEE Instrumentation & Measurement Magazine, 2001 Magnetoinductance and giant magnetoimpedance (GMI) sensors have greatly benefited from the development of amorphous wires. These soft ferromagnetic substances exhibit exquisite sensitivity (in the nT range) and wide bandwidth (MHz) in thin film structures. Combining these properties with surface wave technology produces passive, wireless sensors.
M. Hauser, L. Kraus, P. Ripka
openaire +1 more source
Estimating the Net Magnetic Moment of Geological Samples From Planar Field Maps Using Multipoles
Geochemistry, Geophysics, Geosystems, Volume 24, Issue 7, July 2023., 2023 Abstract Recent advances in magnetic microscopy have enabled studies of geological samples whose weak and spatially nonuniform magnetizations were previously inaccessible to standard magnetometry techniques. A quantity of central importance is the net magnetic moment, which reflects the mean direction and the intensity of the magnetization states of ...
Eduardo A. Lima +4 more
wiley +1 more source
Magnetic Functionalization of Poly(N‐isopropylacrylamide) Hydrogels for Sensor Applications
physica status solidi (b), Volume 259, Issue 8, August 2022., 2022 Herein, methods of introducing large quantities of magnetic nanoparticles into Laponite‐based PNIPAM hydrogels are investigated. Particles are coated with 3‐(trimethoxysilyl)propyl methacrylate and integrated using a magnetic field during the hydrogel synthesis to create large rod‐like agglomerations.
Christian Keßler, Gerald Gerlach
wiley +1 more source
New Dimension in Magnetism and Superconductivity: 3D and Curvilinear Nanoarchitectures
Advanced Materials, Volume 34, Issue 3, January 20, 2022., 2022 The rapidly developing field of curvilinear magnetism and superconductivity is reviewed. The covered topics range from novel physical concepts for material science through first proof‐of‐concept device demonstrations to established technologies of flexible magnetoelectronics.
Denys Makarov +5 more
wiley +1 more source
Magnetic particles for multidimensional in vitro bioanalysis
VIEW, Volume 2, Issue 5, October 2021., 2021 In article number 20200076, Gungun Lin has summarized typical magneto‐physical dimensions of magnetic particles and discussed recent progress of implementing these dimensions with advanced sensor and actuator technologies for multiplex bioanalysis. The review also identified the challenges and highlighted a few emerging directions of applying magnetic ...
Gungun Lin
wiley +1 more source