Spin-Motive Force as a New Energy Conversion Mechanism

author: Sadamichi Maekawa, Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA)
published: March 7, 2013,   recorded: February 2013,   views: 4496


Related Open Educational Resources

Related content

Report a problem or upload files

If you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Lecture popularity: You need to login to cast your vote.


The force acting on the electric charge of electron gives rise to the electro-motive force. This is Faraday’s law in the classical electromagnetism discovered in 1831. It is noted that the modern electric industry started with this law. Here we show that the force acting on the electron spin gives rise to a motive force, i.e., "spin-motive force". This generalized Faraday’s law reflects the conservation of the magnetic energy of a ferromagnet with the electrical energy of the conduction electrons via the mutual exchange interaction. We discuss that the spin-motive force may play a key role in spin-electronics, i.e., spintronics.

See Also:

Download slides icon Download slides: kolokviji_maekawa_spin_01.pdf (7.8 MB)

Help icon Streaming Video Help

Link this page

Would you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !

Write your own review or comment:

make sure you have javascript enabled or clear this field: