Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Rehberg, Ingo"'
In the paper "Andrew D.P. Smith, Peter T. Haugen, Boyd F. Edwards: Hysteretic transition between states of a filled hexagonal magnetic dipole cluster, Journal of Magnetism and Magnetic Materials 549 (2022): 168991" a hysteretic transition between two
Externí odkaz:
http://arxiv.org/abs/2203.13670
Autor:
Hartung, Stefan, Rehberg, Ingo
The coupling of two rotating spherical magnets is investigated experimentally. For two specific angles between the input and output rotation axes, a cogging-free coupling is observed, where the driven magnet is phase-locked to the driving one. The st
Externí odkaz:
http://arxiv.org/abs/2008.05922
Publikováno v:
Journal of Magnetism and Magnetic Materials Volume 508, 15 August 2020, 166868
The magnetization curve of the ferrofluid EMG909 is measured. It can adequately be described by a superposition of four Langevin terms. The effective dipole strength of the magnetic particles in this fluid is subsequently obtained by a graphical rect
Externí odkaz:
http://arxiv.org/abs/1907.12779
Autor:
Rehberg, Ingo, Richter, Reinhard, Hartung, Stefan, Lucht, Niklas, Hankiewicz, Birgit, Friedrich, Thomas
Publikováno v:
Phys. Rev. B 100, 134425 (2019)
The dipole strength of magnetic particles in a suspension is obtained by a graphical rectification of the magnetization curves based on the inverse Langevin function. The method yields the arithmetic and the harmonic mean of the particle distribution
Externí odkaz:
http://arxiv.org/abs/1907.11527
Publikováno v:
Physical Review B 98, 214424 (2018)
The magnetic field of a cuboidal cluster of eight magnetic spheres is measured. It decays with the inverse seventh power of the distance. This corresponds formally to a hitherto unheard-of multipole, namely a dotriacontapole. This strong decay is exp
Externí odkaz:
http://arxiv.org/abs/1809.08081
Publikováno v:
Domracheva, Natalia ; Caporali, Maria ; Rentschler, Eva (Hrsg.): Novel Magnetic Nanostructures. - Amsterdam : Elsevier , 2018 . - S. 165-189 . - (Micro & Nano Technologies Series ) ISBN 978-0-12-813594-5
This chapter describes the synthesis and some characteristics of magnetic iron oxide nanoparticles, mainly nanocubes, and focus on their self-assembly into crystalline cuboids in dispersion. The influence of external magnetic fields, the concentratio
Externí odkaz:
http://arxiv.org/abs/1803.07922
The coupling of two rotating spherical magnets is investigated experimentally, with particular emphasis on those motions where the driven magnet follows the driving one with a uniform angular speed, which is a feature of the so called cogging free co
Externí odkaz:
http://arxiv.org/abs/1801.03416
Publikováno v:
Phys. Rev. E 93, 043106 (2016)
Using a highly viscous magnetic fluid, the dynamics in the aftermath of the Rosensweig instability can be slowed down by more than 2000 times. In this way we expand the regime where the growth rate is predicted to scale linearly with the bifurcation
Externí odkaz:
http://arxiv.org/abs/1603.01073
We report on localized patches of cellular hexagons observed on the surface of a magnetic fluid in a vertical magnetic field. These patches are spontaneously generated by jumping into the neighborhood of the unstable branch of the domain covering hex
Externí odkaz:
http://arxiv.org/abs/1509.07317
Experiments on a thin layer of cohesive wet granular matter under vertical vibrations reveal kink separated domains that collide with the container at different phases. Due to the strong cohesion arising from the formation of liquid bridges between a
Externí odkaz:
http://arxiv.org/abs/1505.04079