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2022 | OriginalPaper | Chapter

6. Poling of Artificial Magneto-Toroidal Crystals

Author : Dr. Jannis Lehmann

Published in: Toroidal Order in Magnetic Metamaterials

Publisher: Springer International Publishing

Abstract

The basis for key applications of ferroic materials is the ability to reverse the orientation of the order parameter and, accompanied by that, the sign or direction of a physical vectorial or tensorial quantity [1, 2]. This characteristic allows one to distinguish otherwise symmetry-equivalent material classes such as pyroelectric materials (polar but not switchable) from ferroelectric materials (polar and switchable). The feature to experimentally manipulate—to “write”—a material property that is connected to the order parameter extends the applicability of ferroic materials from merely passive devices like sensors to new fields such as actuators, memory cells or logic gates. While some of the established ferroic materials, in particular ferromagnets and ferroelectrics, are widely used in scientific and technological applications, ferrotoroidic materials are far from being technologically applicable. This is especially because the generation of an actual conjugate field seems elusive so far.

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previous chapter Domains in Artificial Magneto-Toroidal Crystals

next chapter Optical Effects in Artificial Magneto-Toroidal Crystals

Further, the authors mention that “tip fields are sharply localised, and their effect cannot be guessed from that of an equivalent uniform field”.

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Title: Poling of Artificial Magneto-Toroidal Crystals
Author: Dr. Jannis Lehmann
Publisher: Springer International Publishing
Book: Toroidal Order in Magnetic Metamaterials
Print ISBN: 978-3-030-85494-2

Electronic ISBN: 978-3-030-85495-9

Copyright Year: 2022
DOI: https://doi.org/10.1007/978-3-030-85495-9_6

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6. Poling of Artificial Magneto-Toroidal Crystals

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