Giant magnetoresistance (GMR)

URL de Vidéo distante
Duration : 3.45
Copyright : Synchrotron SOLEIL
Realization : Jean-Yves Pipaud EPSIM
Date : 2010

Video in French - GMR read heads are used in computer hard drives. But what is their function? What are they made of? What is giant magnetoresistance? Where does it come from? What does it make possible?

Visuals copyrights: Synchrotron SOLEIL, CNET networks, IBM, Computer History Museum, Seagate, Fotolia.


Nanotechnology - Feel free to watch our other videos (in French) on this topic:

1/ What is a nanometre?

2/ The nanoworld

3/ Singular properties of nanoparticles

4/ Giant magnetoresistance (GMR)

5/ The scanning tunnelling microscope

6/ The nanoworld at SOLEIL

7/ SAMBA and soft chemistry

8/ SWING and zeolites

9/ TEMPO and molecular grafting 

10/ CASSIOPEE and tunnel junctions