Magnetic characteristics of ferromagnetic nanotube

Lee, Je-Hyun; Suess, Dieter; Schrefl, T.; Oh, Kyu Hwan; Fidler, J.

doi:10.1016/j.jmmm.2006.10.1137

Cited by 55 publications

(30 citation statements)

References 7 publications

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“…However, we find that insufficient discretization of the numerical cells can lead to this erroneous result (see Appendix C). It is likely that earlier numerical simulations [35,36], showing the mixed state with end vortices of opposing circulation as the low-field equilibrium configuration, are affected by this artifact and are therefore incorrect.…”

Section: Comparison To Numerical Simulationsmentioning

confidence: 98%

Imaging magnetic vortex configurations in ferromagnetic nanotubes

et al. 2017

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We image the remnant magnetization configurations of CoFeB and permalloy nanotubes (NTs) using x-ray magnetic circular dichroism photoemission electron microscopy. The images provide direct evidence for fluxclosure configurations, including a global vortex state, in which magnetization points circumferentially around the NT axis. Furthermore, micromagnetic simulations predict and measurements confirm that vortex states can be programmed as the equilibrium remnant magnetization configurations by reducing the ratio of the NT's length and diameter.

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Section: Comparison To Numerical Simulationsmentioning

confidence: 98%

Imaging magnetic vortex configurations in ferromagnetic nanotubes

et al. 2017

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“…This has led, along with other conceivable candidates, to the production of magnetic NWs and NTs because of their unique magnetic properties and potential technological applications in, for instance, microwave devices [2][3][4], chemical sensors [5,6], high-density data storage [7][8][9], and light emitters [10][11][12]. Magnetic NWs and NTs are attractive in physics, but they also got an enormous attraction in biological and biomedical applications [13][14][15][16]. They have been proven to be promising tool for cell manipulation and positioning and have also been suggested for hyperthermia usage to treat cancer cells [17].…”

Section: Introductionmentioning

confidence: 99%

“…Generally, magnetization curves, obtained from magnetometry instruments such as SQUID, AGFM, and VSM, are used to characterize the behavior of nanostructured magnetic materials [16,[20][21][22][23][24][25][26][27]. The characteristic features of these curves are linked to the type of material, size, and shape of the entity, orientation of the sample with respect to the field and sample magnetization history.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Force Microscopy Characterization of Magnetic Nanowires and Nanotubes

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Piraux

et al. 2016

Magnetic Characterization Techniques for Nanomaterials

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The fundamental properties of 2D arrays of magnetic nanowires and nanotubes (NWs and NTs) have been well described theoretically, but real systems are subject to certain flaws and imperfections which strongly affect the mechanism and dynamics of magnetization reversal. Therefore, before exploiting the vast potential of magnetic NWs and NTs, there is a need to investigate the materials parameters as well as the field dependent magnetic properties in real systems. Amongst the various issues at stake for a comprehensive understanding of these arrays is the influence of long-range dipolar interactions because these interactions strongly influence the magnetization reversal and thus the switching field distributions (SFD) which plays a significant role for information storage. Particularly, the width of the SFD is important since smaller values of this parameter leads to less recording errors and it is also a measure of the quality of the recording media. Consequently, the understanding a

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“…Besides nanorods, whose magnetic properties have already been studied for many years, fabrication of more complicated structures, such as nanotubes either hollow or filled with a semiconductor material have been recently produced [2,3]. Simulations of such objects are focused on tubes with a small aspect ratio [4] or on dynamic processes, like nucleation [5]. Reports on interacting nanotubes are scarce and no measurements or some estimation of the interacting forces is known to be reported so far.…”

Section: Introductionmentioning

confidence: 99%