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This story is from the category Computing Power
Date posted: 24/08/2011 HZB scientists observe how a material at room temperature exhibits a unique property -- a „multiferroic" material with potential uses for cheap and quick data storage. Researchers at Helmholtz-Zentrum Berlin (HZB) in close collaboration with colleagues in France and UK, have engineered a material that exhibits a rare and versatile trait in magnetism at room temperature. It's called a "multiferroic," and it means that the material has properties allowing it to be both electrically charged (ferroelectric) and also the ability to be magnetic (ferromagnetic), with its magnetisation controlled by electricity. This research was based around a material known as barium titanate (BaTiO3), a ferroelectric crystal that is promising to have potential uses in multi-state data storage while being cost effective. Their paper titled, "Interface-induced room-temperature multiferroicity in BaTiO3" appears now in Nature Materials. "We've shown a way where you can obtain a multiferroic at room temperature," said Sergio Valencia, post doc researcher at HZB, referring to the scarcity of room temperature examples. "Barium titanate is ferromagnetic, so it means you have a net-magnetic moment you can really control by an electric field. The idea is that you can apply a voltage to the ferroelectric reversing the ferroelectric polarization which in turn affects the magnetization of your film [BaTiO3]. See the full Story via external site: www.sciencedaily.com Most recent stories in this category (Computing Power): 19/02/2017: Printable solar cells just got a little closer |
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