Theory and applications of toroidal moments in electrodynamics: their emergence, characteristics, and technological relevance

What is it about?

What are toroidal moments and why are them not included in the classical series for electromagnetic moments? How to identify them practically? Do they have technological relevance? These are questions which you can find their answers in this topical review.

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Why is it important?

This review describes the mathematical principles of toroidal moments as well as their applications and technological efforts to design new devices based on toroidal moments. Hence the current review is relevant to both incomers and experts in this field.