Scientists from UCLA say they created a new class of material with magnetic properties in a dilute magnetic semiconductor (DMS) system. By using a type of quantum structure, they've been able to push the ferromagnetism above room temperature. 

Ferromagnetic coupling in DMS systems, the researchers say, could lead to a new breed of magneto-electronic devices that alleviate the problems related to electric currents. The electric field–controlled ferromagnetism reported in this study shows that without passing an electric current, electronic devices could be operated and functioning based on the collective spin behavior of the carriers. This holds great promise for building next-generation nanoscaled integrated chips with much lower power consumption.

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ZnO based DMS

I need more reference about this, primarily on ZnO based DMS