Results 61 to 70 of about 20,616 (293)
Patterns of active dipolar particles in external magnetic fields
Physical Review EActive particles with a (magnetic) dipole moment are of interest for steering self-propelled motion but also result in novel collective effects due to their dipole-dipole interaction. Here systems of active dipolar particles are studied with Brownian dynamics simulations to systematically characterize the different patterns they form, specifically in ...
Vitali Telezki, Stefan Klumpp
openaire +4 more sources
Dipolar spin waves of lateral magnetic superlattices [PDF]
, 2010 We investigate the high-frequency dynamics of dysprosium and cobalt gratings fabricated at the surface of a GaAs/Al0.33Ga0.67As heterojunction. We detect the collective and localized spin-wave modes of the grating by measuring the photovoltage and the ...
Saraiva, Pedro +9 more
core +1 more source
Advanced Materials, EarlyView.Magnetic particles are organized into layered architectures by combining shear flow and magnetic fields, with the resulting structures governed by appropriate Mason numbers. The programmed assemblies provide spatial guidance for cell placement, linking field‐controlled self‐assembly, flow‐induced structuring and biological organization.
Guillermo Camacho +5 more
wiley +1 more source
Communications Physics, 2023 The synchronisation of magnetic tunnel junctions in the high frequency domain has attracted significant interest in the context of novel computation paradigms, specifically neuromorphic spintronics and probabilistic computing.
Leandro Martins +5 more
doaj +1 more source
The physical properties of magnetic inks [PDF]
, 1988 The magnetic particle inspection (MPI) method is a widely used non destructive testing (NDT) technique for ferrous structures. Magnetic inks used in MPI are suspensions of fine ferro/ferrimagnetic particles which, when applied to a magnetized test ...
McCoy, J.M, McCoy, James Martin
core
Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes
Advanced Materials Technologies, EarlyView.We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard +7 more
wiley +1 more source
State Transitions and Hysteresis in a Transverse Magnetic Island Chain
MagnetismA chain of dipole-coupled elongated magnetic islands whose long axes are oriented perpendicular to the chain is studied for its magnetization properties.
Gary M. Wysin
doaj +1 more source
Estimating the Evolution of Sparks in the Partially Screened Gap of Pulsars from Subpulse Drifting
The Astrophysical Journal, 2023 A novel scheme has been developed to show that the observed phase behavior associated with subpulse drifting from two pulsars, J1034−3224 and J1720−2933, can be used to obtain the magnetic field configuration in the partially screened gap (PSG).
Rahul Basu +2 more
doaj +1 more source
Bistability and hysteresis of dipolar dynamos generated by turbulent convection in rotating spherical shells [PDF]
, 2009 Bistability and hysteresis of magnetohydrodynamic dipolar dynamos generated by turbulent convection in rotating spherical fluid shells is demonstrated.
Simitev, R. +3 more
core +1 more source
Probing Near‐Field EM Fluctuations in Superparamagnetic CoFeB With NV Quantum Dephasometry
Advanced Optical Materials, EarlyView.We non‐invasively investigate the superparamagnetic spin dynamics of a 1.1 nm CoFeB layer by probing its near‐field EM fluctuations using NV centers‐based quantum dephasometry. Our findings are further supported by theoretical modeling and SQUID‐based magnetization characterization. These results provide critical insight into the magnetization dynamics
Shoaib Mahmud +5 more
wiley +1 more source