New York, March 25 IANS | 6 months ago

Data storage capacity of computer hard drives could go up significantly as scientists have now discovered a new magnetic material that can change its magnetism with a tiny shift in temperature.

The yet unnamed material is called 'magnetic-oxide hybrid' by its discoverer Ivan Schuller of University of California, San Diego.

The material consists of a thin layer of nickel, which is magnetic and extremely sensitive to heat, and another layer of vanadium oxide, whose properties change with temperature.

"By putting together an oxide and a magnetic material, we created an artificial material, which has unique magnetic properties," Schuller was quoted as saying.

The new material dramatically changes its coercivity (resistance of a magnetic material to changes in magnetisation) in an interval of just 10 degrees temperature change, said Schuller.

This eliminates the need to heat it to a high temperature to re-magnetise it, he said.

This material could also be used in electrical networks such as transformers, the study said.

The research appeared in the journal Applied Physics Letters.

(Posted on 25-03-2014)

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