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Chiral and topological nature of magnetic skyrmions

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Chiral and topological nature of magnetic skyrmions/ by Shilei Zhang.
作者:	Zhang, Shilei.
出版者:	Cham :Springer International Publishing : : 2018.,
面頁冊數:	xxi, 117 p. :ill., digital ; : 24 cm.;
Contained By:	Springer eBooks
標題:	Skyrme model. -
電子資源:	https://doi.org/10.1007/978-3-319-98252-6
ISBN:	9783319982526

Chiral and topological nature of magnetic skyrmions
Zhang, Shilei.

Chiral and topological nature of magnetic skyrmions[electronic resource] /by Shilei Zhang. - Cham :Springer International Publishing :2018. - xxi, 117 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

The Story so Far -- Measurement of the Magnetic Long-range Order -- Measurement of the Skyrmion Lattice Domains -- Measurement of the Topological Winding Number -- Measurement of the Skyrmion Helicity Angle -- Dichroism Extinction Rule.

This book focuses on the characterisation of the chiral and topological nature of magnetic skyrmions in noncentrosymmetric helimagnets. In these materials, the skyrmion lattice phase appears as a long-range-ordered, close-packed grid of nearly millimetre-level correlation length, while the size of a single skyrmion is 3-100 nm. This is a very challenging range of length scales (spanning 5 orders of magnitude from tens of nm to mm) for magnetic characterisation techniques, and, to date, extensive information on this fascinating, magnetically ordered state has remained elusive. In response, this work develops novel resonant elastic x-ray scattering (REXS) techniques, which allow the magnetic structure, including the long-range order and domain formation, as well as microscopic skyrmion parameters, to be measured across the full range of length scales. Most importantly, using circular dichroism in REXS, the internal structure of a given skyrmion, the topological winding number, and the skyrmion helicity angle can all be unambiguously determined. These new techniques are applicable to many materials systems, and allow us to retrieve information on modulated spin structures, multiferroic order, spin-density-waves, and other forms of topological magnetic order.

ISBN: 9783319982526

Standard No.: 10.1007/978-3-319-98252-6doiSubjects--Topical Terms:

1067562
Skyrme model.

LC Class. No.: QC793.3.S8 / Z436 2018

Dewey Class. No.: 539.7

Chiral and topological nature of magnetic skyrmions
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520 $a This book focuses on the characterisation of the chiral and topological nature of magnetic skyrmions in noncentrosymmetric helimagnets. In these materials, the skyrmion lattice phase appears as a long-range-ordered, close-packed grid of nearly millimetre-level correlation length, while the size of a single skyrmion is 3-100 nm. This is a very challenging range of length scales (spanning 5 orders of magnitude from tens of nm to mm) for magnetic characterisation techniques, and, to date, extensive information on this fascinating, magnetically ordered state has remained elusive. In response, this work develops novel resonant elastic x-ray scattering (REXS) techniques, which allow the magnetic structure, including the long-range order and domain formation, as well as microscopic skyrmion parameters, to be measured across the full range of length scales. Most importantly, using circular dichroism in REXS, the internal structure of a given skyrmion, the topological winding number, and the skyrmion helicity angle can all be unambiguously determined. These new techniques are applicable to many materials systems, and allow us to retrieve information on modulated spin structures, multiferroic order, spin-density-waves, and other forms of topological magnetic order.
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