what are the magnetic field 100% restricting materials

[krishna_raju]

what are the magnetic field 100% restricting materials,
briefly explaining my doubt is:
Considering 2 magnets are kept side by
side they tries to attract each other.So, my question is in middle of 2 magnets placing a material to stop the tranfering magnetic lines of force.
what is that magnetic restricting material i want to know the restricting material should be 100% to stop the magnetic lines of forces.
so, please understand my doubt and reply as early as possible

[krishna_raju]

[quote="krishna_raju"]what are the magnetic field 100% restricting materials,
briefly explaining my doubt is:
Considering 2 magnets are kept side by
side they tries to attract each other.So, my question is in middle of 2 magnets placing a material to stop the tranfering magnetic lines of force.
what is that magnetic restricting material i want to know the restricting material should be 100% to stop the magnetic lines of forces.
Is there any materials like this in the universe or world or may have any chances to make it artificially, understand my question correctly
i clearly that i am not asking about non conduting materials it is different
So, give reason as earlier as possible.
thanks waiting for reply

[deleted-71487]

There aren't very many materials that stop magnetic fields very well. The only reasonably common one I know of is called "spin metal" or "mu metal" it's an amorphous alloy of some kind.

Anyway, entering "magnetic shielding" into Google results in a large number of hits on companies selling magnetic shielding materials. They provide a lot of information on their websites about their materials.

I'm not sure where you'd get a small quantity for a science project, though... most of these places are industrial suppliers. You might research what material you want and then do more targetted online searches to see if someone sells it in retail quantities.

[deleted-71254]

Dear Krishna Raju,

One way of sheilding a magnetic field is to use a high permability material, such as Mu-Metal (search on term recommended). This "short circuits" the magnetic field by providing a very low magnetic impedance, if you will...

Check out:

http://www.lessemf.com/mag-shld.html

Another way is to use a superconductive material. This has the effect of setting up eddy currents in the superconductor that exactly oppose the externally applied magnetic field, holding it back. This is called the Meisner effect (search on term recommended)

Good Luck!

Check out: