Thermoinduced magnetic moment in akaganéite nanoparticles

Thermoinduced magnetic moment in akaganéite nanoparticles

Thermoinduced magnetization in nanoparticles of antiferromagnetic materials.

We show that there is a thermoinduced contribution to the magnetic moment of nanoparticles of antiferromagnetic materials. It arises from thermal excitations of the uniform spin-precession mode, and it has the unusual property that its magnitude increases with increasing temperature. This has the consequence that antiferromagnetism is nonexistent in nanoparticles at finite temperatures and it e...

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