Results 11 to 20 of about 504,040 (288)

Direct Polyphenol Attachment on the Surfaces of Magnetite Nanoparticles, Using Vitis vinifera, Vaccinium corymbosum, or Punica granatum

open access: yesNanomaterials, 2023
This study presents an alternative approach to directly synthesizing magnetite nanoparticles (MNPs) in the presence of Vitis vinifera, Vaccinium corymbosum, and Punica granatum derived from natural sources (grapes, blueberries, and pomegranates ...
Ana E. Matías-Reyes   +9 more
doaj   +1 more source

Method of analysis of the reversal magnetization processes using magnetic domain structure images [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
A unique software and hardware system for obtaining and automatic analysis of the magnetic domain structure images in an external magnetic field for further study of the magnetization reversal process was developed.
A.Yu. Karpenkov   +3 more
doaj   +1 more source

Controlled switching of N\'eel caps in flux-closure magnetic dots [PDF]

open access: yes, 2009
While magnetic hysteresis usually considers magnetic domains, the switching of the core of magnetic vortices has recently become an active topic. We considered Bloch domain walls, which are known to display at the surface of thin films flux-closure ...
A. Hubert   +11 more
core   +5 more sources

Dynamics of liquid crystalline domains in magnetic field [PDF]

open access: yes, 2004
We study microscopic single domains nucleating and growing within the coexistence region of the Isotropic (I) and Nematic (N) phases in magnetic field. By rapidly switching on the magnetic field the time needed to align the nuclei of sufficiently large ...
De Gennes P. G.   +5 more
core   +2 more sources

Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films [PDF]

open access: yes, 2020
We demonstrate stable and reversible current induced switching of large-area ($> 100\;\mu m^2$) antiferromagnetic domains in NiO/Pt by performing concurrent transport and magneto-optical imaging measurements in an adapted Kerr microscope.
Baldrati L.   +7 more
core   +2 more sources

Magnetic domains

open access: yesEos, Transactions American Geophysical Union, 1989
At the recently concluded International Association of Geomagnetism and Aeronomy Assembly in Exeter, U.K., magnetic domain observations on magnetite imaged for the first time by the magneto‐optic Kerr effect were reported. The picture (Figure 1) shows domains on a synthetic magnetite grain where magnetic contrast is achieved by the longitudinal Kerr ...
H.‐U. Worm   +5 more
openaire   +1 more source

The Effect of Changes in Magnetic Field and Frequency on the Vibration of a Thin Magnetostrictive Patch as a Tool for Generating Guided Ultrasonic Waves

open access: yesSensors, 2022
A set of experiments was designed and conducted to investigate the vibrational ultrasonic response of a thin magnetostrictive patch bonded to a glass plate, with changes in static and dynamic magnetic fields applied to the patch.
Akram Zitoun   +3 more
doaj   +1 more source

Domain Wall Injection in Spin Valve Systems with Reservoirs of Different Geometries

open access: yesCrystals, 2020
This study investigates nanostrips in Co/Cu/Py spin valve structures by connecting one side to domain wall reservoirs of different shapes in order to manipulate the switching field.
Cheng-Yi Wu, Shiow-Kang Yen
doaj   +1 more source

Investigation of Unwanted Oscillations of Electrically Modulated Magnetoelectric Cantilever Sensors

open access: yesSensors, 2023
Magnetoelectric thin-film cantilevers consisting of strain-coupled magnetostrictive and piezoelectric layers are promising candidates for magnetic field measurements in biomedical applications.
Julius Schmalz   +3 more
doaj   +1 more source

Microstructural Modeling of the Magnetization Process in Ni2MnGa Alloy Polytwin Crystals

open access: yesMagnetochemistry, 2022
In this article, based on the theory of micromagnetism, a microstructural model of the behavior of the Heusler alloy in a magnetic field is constructed. The dynamics of the magnetic process is described by the Landau–Lifshitz–Gilbert equation.
Anatoli A. Rogovoy, Olga S. Stolbova
doaj   +1 more source

Home - About - Disclaimer - Privacy