Break-up of dipolar rings under an external magnetic field

F. Kun; K. F. Pál; Weijia Wen; K. N. Tu

doi:10.1016/S0375-9601(00)00677-0

Author(s)

F. Kun
K. F. Pál
Weijia Wen
K. N. Tu

Detail(s)

Original language	English
Pages (from-to)	287-293
Journal / Publication	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	277
Issue number	4-5
Publication status	Published - 4 Dec 2000
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/S0375-9601(00)00677-0 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0034606198&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(e365e635-08ae-4909-91c6-da277b741510).html

Abstract

An experimental and theoretical study of the deformation and break-up process of rings, formed by magnetic microspheres, under the application of an external magnetic field is reported in this Letter. When the external magnetic field is applied parallel to the plane of the rings, we found that the break-up process has three different outcomes depending on the way of application and time history of the external field: (a) deformation into a compact set of dipoles with a triangular lattice structure, (b) opening into a single chain, and (c) break-up into two chains with various relative sizes. A thorough theoretical investigation of the break-up process has been carried out based on computer simulations, taking into account solely the dipole-dipole and dipole-external field interactions, without thermal noise. The experimental results and the simulations are in good agreement. (C) 2000 Elsevier Science B.V.

Research Area(s)

Aggregation, Break-up, Magnetic microspheres, Rings

Bibliographic Note

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Citation Format(s)

[ RIS ] [ BibTeX ]

Break-up of dipolar rings under an external magnetic field. / Kun, F.; Pál, K. F.; Wen, Weijia et al.
In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 277, No. 4-5, 04.12.2000, p. 287-293.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Kun, F, Pál, KF, Wen, W & Tu, KN 2000, 'Break-up of dipolar rings under an external magnetic field', Physics Letters, Section A: General, Atomic and Solid State Physics, vol. 277, no. 4-5, pp. 287-293. https://doi.org/10.1016/S0375-9601(00)00677-0

Kun, F., Pál, K. F., Wen, W., & Tu, K. N. (2000). Break-up of dipolar rings under an external magnetic field. Physics Letters, Section A: General, Atomic and Solid State Physics, 277(4-5), 287-293. https://doi.org/10.1016/S0375-9601(00)00677-0

Kun F, Pál KF, Wen W, Tu KN. Break-up of dipolar rings under an external magnetic field. Physics Letters, Section A: General, Atomic and Solid State Physics. 2000 Dec 4;277(4-5):287-293. doi: 10.1016/S0375-9601(00)00677-0

Kun, F. ; Pál, K. F. ; Wen, Weijia et al. / Break-up of dipolar rings under an external magnetic field. In: Physics Letters, Section A: General, Atomic and Solid State Physics. 2000 ; Vol. 277, No. 4-5. pp. 287-293.