Quizzed article | REF: D1504 V1

Magnetic measurements - Principles andproduction of magnetic fields

Authors: Fausto FIORILLO, Frédéric MAZALEYRAT

Publication date: August 10, 2009, Review date: April 26, 2021 | Lire en français

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

Automatically translated using artificial intelligence technology (Note that only the original version is binding) > find out more.

    A  |  A

    1. Phenomenology of material magnetism

    Throughout the text, the units of physical quantities are those of the SI international system.

    1.1 Magnetism of materials

    From the point of view of magnetic properties, a material sample is basically described as a set of magnetic moments resulting from the movement of electrons. It can be said that there are internal currents (Amperian currents) of quantum origin, resulting from the atomic-scale trajectories of electrons, which carry no charge flux through the body and therefore behave like a solenoid. Because of this property, their density j M (r ) can be expressed as the rotational of another vector function M ( r ).

    You do not have access to this resource.

    Exclusive to subscribers. 97% yet to be discovered!

    You do not have access to this resource.
    Click here to request your free trial access!

    Already subscribed? Log in!


    The Ultimate Scientific and Technical Reference

    A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
    + More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
    From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

    This article is included in

    Conversion of electrical energy

    This offer includes:

    Knowledge Base

    Updated and enriched with articles validated by our scientific committees

    Services

    A set of exclusive tools to complement the resources

    Practical Path

    Operational and didactic, to guarantee the acquisition of transversal skills

    Doc & Quiz

    Interactive articles with quizzes, for constructive reading

    Subscribe now!

    Ongoing reading
    Phenomenology of material magnetism