Energy and force between two magnetic nanotubes

Suarez, O. J.; Vargas, P.; Vogel, E.E.

doi:10.1016/j.jmmm.2009.07.009

Cited by 12 publications

(3 citation statements)

References 16 publications

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“…Theoretically, the dipolar interaction between two NTs has been considered in several reports, and fully analytical and approximated solutions have been determined for the DIF [12,14,15]; yet from these solutions it is not possible to derive the effective demagnetizing field and incorporate the effects of the packing fraction and its dependence on the wall thickness for an array containing a large number of tubes.…”

mentioning

confidence: 99%

Dipolar interaction in arrays of magnetic nanotubes

Velázquez-Galván

Martínez-Huerta

Medina

et al. 2013

J. Phys.: Condens. Matter

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The dipolar interaction field in arrays of nickel nanotubes has been investigated on the basis of expressions derived from the effective demagnetizing field of the assembly as well as magnetometry measurements. The model incorporates explicitly the wall thickness and aspect ratio, as well as the spatial order of the nanotubes. The model and experiment show that the interaction field in nanotubes is smaller than that in solid nanowires due to the packing fraction reduction in tubes related to their inner cavity. Finally, good agreement between the model and experiment is found for the variation of the interaction field as a function of the tube wall thickness.

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mentioning

confidence: 99%

Dipolar interaction in arrays of magnetic nanotubes

Velázquez-Galván

Martínez-Huerta

Medina

et al. 2013

J. Phys.: Condens. Matter

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“…On the other hand, the static and dynamic magnetic properties of magnetic nanotubes, such as the magnetic equilibrium states [ 34 , 35 , 36 , 37 , 38 ], magnetization reversal mechanisms [ 16 , 17 , 21 , 23 , 37 , 38 , 39 , 40 , 41 , 42 , 43 ] and magnetostatic interaction [ 44 , 45 , 46 , 47 ], have also been investigated theoretically. González et al [ 48 ] went further and calculated the spin wave spectra associated with the vortex domain wall confined within a nanotube, which encouraged the synthesis of Fe 3 O 4 nanotubes with this type of domain wall [ 49 ].…”

Section: Introductionmentioning

confidence: 99%

Static and Dynamic Magnetic Properties of Fe3O4 Nanotubes

et al. 2023

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In this paper, our objective was to investigate the static and dynamic magnetic properties of Fe3O4 nanotubes that are 1000 nm long, by varying the external radius and the thickness of the tube wall. We performed a detailed numerical analysis by simulating hysteresis curves with an external magnetic field applied parallel to the axis of the tubes (along the z-axis). Our findings indicate that nanotubes with an external radius of 30 nm exhibit non-monotonic behavior in their coercivity due to a change in the magnetization reversal mechanism, which was not observed in nanotubes with external radii of 80 nm. Additionally, we explored the dynamic susceptibility of these nanotubes and found that the position and number of resonance peaks can be controlled by manipulating the nanotube geometry. Overall, our study provides valuable insights into the behavior of Fe3O4 nanotubes, which can aid in the design and improvement in pseudo-one-dimensional technological devices.

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“…The analytical expression of the attractive force between two arrays of cylindrical permanent magnets was derived from the derivative of the total magnetostatic interaction energy with respect to the axial coordinate [24,25]. Interaction energy and force between two parallel thin magnetic nanotubes with axial magnetization have been calculated by four different approaches [26]. The interaction energy, and axial and radial interaction forces have been expressed semi-analytically in magnetostatic interaction energy when a cylindrical permanent magnet is inside a tubular permanent magnet [27].…”

Section: Introductionmentioning

confidence: 99%

Interaction Forces and Torques between Two Perpendicular Magnetic Tubes

Li¹

2018

JMAG

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Cylinders, tubes, cuboids, etc. are basic magnet shapes used in permanent magnet machines. The relative positions between magnets include parallel, perpendicular, or inclined. The force and torque between two cuboid magnets of almost any status and two cylindrical magnets with paralleled axes have been solved. Using the theory of magnetic charges and magnetic Coulomb's law, this study derives a mathematical model for interaction forces and torques between two perpendicular magnetic tubes in three dimensions. Using this model, the effects of tube relative positions on the interaction forces and torques is analyzed by numerical calculation. The model can also express interaction forces and torques between a magnetic tube and magnetic cylinder or between two magnetic cylinders when the inner radius of one magnetic tube is zero or the radii of both tubes are zero. This study provides the theoretical background for magnetic tube and cylinder applications, such as magnetic drive or control across space in mechanical, medical treatment, chemical industry, food production, aerospace, etc.

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Energy and force between two magnetic nanotubes

Cited by 12 publications

References 16 publications

Dipolar interaction in arrays of magnetic nanotubes

Dipolar interaction in arrays of magnetic nanotubes

Static and Dynamic Magnetic Properties of Fe3O4 Nanotubes

Interaction Forces and Torques between Two Perpendicular Magnetic Tubes

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