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The precision of the values of a magnetic field generated by electromagnetic flux compression was investigated in ultra-high magnetic fields of up to 700 T. In an attempt to calibrate the magnetic field measured by pickup coils, precise…

Instrumentation and Detectors · Physics 2013-09-05 D. Nakamura , H. Sawabe , Y. H. Matsuda , S. Takeyama

An attractive technique for forming and collecting aggregates of magnetic material at a liquid--air interface by an applied magnetic field gradient was recently addressed theoretically and experimentally [Soft Matter, (9) 2013, 8600-8608]:…

Fluid Dynamics · Physics 2015-01-07 Shahriar Afkhami , Linda J. Cummings , Ian M. Griffiths

Ferrofluids are liquids exhibiting remarkably strong response to magnetic fields, which leads to fascinating properties useful in various applications. Understanding the wetting properties and spreading of ferrofluids is important for their…

Soft Condensed Matter · Physics 2018-10-15 Mika Latikka , Matilda Backholm , Jaakko V. I. Timonen , Robin H. A. Ras

Decades of work on beam deformation on reflection, and especially on lateral shifts, have spread the idea that a reflected beam is larger than the incident beam. However, when the right conditions are met, a beam reflected by a multilayered…

To accurately assess the structural performance of corroded reinforced concrete structures, obtaining precise information on the corrosion range and corrosion degree of rebar is crucial. In this study, based on a comprehensive analysis of…

Applied Physics · Physics 2025-02-14 Junli Qiu , Weiping Zhang , Chao Jiang , Hong Zhang , Jianting Zhou

Neutral atoms may be trapped via the interaction of their magnetic dipole moment with magnetic field gradients. One of the possible schemes is the cloverleaf trap. It is often desirable to have at hand a fast and precise technique for…

Soft Condensed Matter · Physics 2007-05-23 Ph. W. Courteille , S. R. Muniz , K. Magalhaes , R. Kaiser , L. G. Marcassa , V. S. Bagnato

A physical magnetic field has a divergence of zero. Numerical error in constructing a model field and computing the divergence, however, introduces a finite divergence into these calculations. A popular metric for measuring divergence is…

Solar and Stellar Astrophysics · Physics 2021-04-05 S. A. Gilchrist , K. D. Leka , G. Barnes , M. S. Wheatland , M. L. DeRosa

Magnetic fields and magnetic materials have promising microfluidic applications. For example, magnetic micro-convection can enhance mixing considerably. However, previous studies have not explained increased effective diffusion during this…

Soft Condensed Matter · Physics 2020-03-11 Guntars Kitenbergs , Andrejs Cēbers

Boundary-dependent radiative corrections that modify the magnetic moment of an electron near a dielectric or conducting surface are investigated. Normal-mode quantization of the electromagnetic field and perturbation theory applied to the…

Quantum Physics · Physics 2013-02-12 Robert Bennett , Claudia Eberlein

Aims: To determine alpha effect and turbulent magnetic diffusivity for mean magnetic fields with profiles of different length scale from simulations of isotropic turbulence, and to relate these results to nonlocal formulations in which…

Astrophysics · Physics 2008-04-30 A. Brandenburg , K. -H. Rädler , M. Schrinner

The definition and measurement of magnetic reconnection in three-dimensional magnetic fields with multiple reconnection sites is a challenging problem, particularly in fields lacking null points. We propose a generalization of the familiar…

Plasma Physics · Physics 2015-05-28 A. R. Yeates , G. Hornig

It has been previously shown that one can use the ME methodology (Caticha Giffin 2006) to reproduce a mean field solution for a simple fluid (Tseng 2004). One could easily use the case of a simple ferromagnetic material as well. The…

Statistical Mechanics · Physics 2015-05-18 Adom Giffin

We present a new class of magnetically shaped deformable liquid mirrors made of a magnetic liquid (ferrofluid). Deformable liquid mirrors offer advantages with respect to deformable solid mirrors: large deformations, low costs and the…

A key question in understanding the observed magnetic field topologies of cool stars is the link between the small- and the large-scale magnetic field and the influence of the stellar parameters on the magnetic field topology. We examine…

Solar and Stellar Astrophysics · Physics 2018-05-23 L. T. Lehmann , M. M. Jardine , D. H. Mackay , A. A. Vidotto

Ferrofluids are strongly paramagnetic liquids. We study the behavior of ferrofluid droplets confined between two parallel plates with a weak applied field parallel to the plates. The droplets elongate under the applied field to reduce their…

Soft Condensed Matter · Physics 2009-10-31 S. Banerjee , M. Fasnacht , S. Garoff , M. Widom

We investigate how ferrofluid droplets suspended in a wall-bounded shear flow can organise when subjected to an external magnetic field. By tuning the magnitude of the external magnetic field, we find that the ferrofluid droplets form…

Soft Condensed Matter · Physics 2022-07-06 Shunichi Ishida , Yaochen Yang , Fanlong Meng , Daiki Matsunaga

In this letter we discuss physical mechanisms for delocalization of the magnetic field of Abrikosov vortex in superconductors in the presence of planar defects of various electronic transparency. The resulting strong perturbation of the…

Superconductivity · Physics 2023-11-09 V. Plastovets , A. Buzdin

Research on magnetic particles dispersed in a fluid medium, actuated by a rotating magnetic field, is becoming increasingly active for both lab-on-chip and bio-sensing applications. In this study, we experimentally investigate the behaviour…

Soft Condensed Matter · Physics 2020-02-25 Abdelqader Zaben , Guntars Kitenbergs , Andrejs Cēbers

A number of aspects of magnetic force microscopy (MFM) specific to the imaging of hard magnetic films have been studied. Firstly, we show that topographic images made in tapping mode with probes characterized by the moderate cantilever…

Materials Science · Physics 2015-11-02 G Ciuta , F Dumas-Bouchiat , Nora Dempsey , Olivier Fruchart

A weak fluctuating magnetic field embedded into a turbulent conducting medium grows exponentially while its characteristic scale decays. In the ISM and protogalactic plasmas, the magnetic Pr is very large, so a broad spectrum of growing…

Astrophysics · Physics 2008-11-26 Alexander Schekochihin , Steven Cowley , Jason Maron , Leonid Malyshkin