Structure–relaxivity relationships of magnetic nanoparticles for magnetic resonance imaging

Z Zhou, L Yang, J Gao, X Chen - Advanced Materials, 2019 - Wiley Online Library
Magnetic nanoparticles (MNPs) have been extensively explored as magnetic resonance
imaging (MRI) contrast agents. With the increasing complexity in the structure of modern …

Characteristics and controllability of vortices in ferromagnetics, ferroelectrics, and multiferroics

Y Zheng, WJ Chen - Reports on Progress in Physics, 2017 - iopscience.iop.org
Topological defects in condensed matter are attracting e significant attention due to their
important role in phase transition and their fascinating characteristics. Among the various …

Magnetization reversal due to vortex nucleation, displacement, and annihilation in submicron ferromagnetic dot arrays

KY Guslienko, V Novosad, Y Otani, H Shima… - Physical Review B, 2001 - APS
Magnetization processes are analytically described for the arrays of soft ferromagnetic
polycrystalline circular dots with submicron dimensions, wherein the magnetization reversal …

Magnetic vortex state stability, reversal and dynamics in restricted geometries

KY Guslienko - Journal of nanoscience and nanotechnology, 2008 - ingentaconnect.com
Magnetic vortices are typically the ground states in geometrically confined ferromagnets with
small magnetocrystalline anisotropy. In this article I review static and dynamic properties of …

Magnetization reversal via single and double vortex states in submicron Permalloy ellipses

P Vavassori, N Zaluzec, V Metlushko, V Novosad, B Ilic… - Physical Review B, 2004 - APS
The magnetization reversal mechanism in an array of submicron elliptical Permalloy
elements with an aspect ratio 1.4: 1 is investigated using the diffracted magneto-optic Kerr …

Magnetic force microscopy study of electron-beam-patterned soft permalloy particles: Technique and magnetization behavior

X Zhu, P Grütter, V Metlushko, B Ilic - Physical Review B, 2002 - APS
Electron-beam-patterned submicron permalloy elements with different aspect ratios were
studied by magnetic force microscopy (MFM). The MFM tip stray field can be used to control …

Multi-domain structures in spheroidal Co nanoparticles

NA Usov, MS Nesmeyanov - Scientific Reports, 2020 - nature.com
The structure of multi-domain micromagnetic states in hcp cobalt nanoparticles of spheroidal
shape has been studied using numerical simulation in the range of diameters 20–200 nm …

Three-dimensional chiral magnetization structures in FeGe nanospheres

SA Pathak, R Hertel - Physical Review B, 2021 - APS
Skyrmions, spin spirals, and other chiral magnetization structures develo** in materials
with an intrinsic Dzyaloshinskii-Moriya interaction display unique properties that have been …

Three-dimensional magnetic-flux-closure patterns in mesoscopic Fe islands

R Hertel, O Fruchart, S Cherifi, PO Jubert, S Heun… - Physical Review B …, 2005 - APS
We have investigated three-dimensional magnetization structures in numerous mesoscopic
Fe∕ Mo (110) islands by means of x-ray magnetic circular dichroism combined with …

Magnetically-controllable zigzag structures as cell microgripper

TR Ger, HT Huang, WY Chen, MF Lai - Lab on a Chip, 2013 - pubs.rsc.org
We designed and fabricated a micro-scaled cell gripper based on two highly flexible
magnetic zigzag structures that can be actuated by a magnetic field. Elongated single …