Information recording and reproducing device for high-recording density
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United States of America Patent
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Apr 30, 2013
Grant Date -
Mar 17, 2011
app pub date -
Sep 17, 2010
filing date -
Apr 1, 2008
priority date (Note) -
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Abstract
According to one embodiment, an information recording and reproducing device includes a recording layer which includes a typical element and a transition element, and stores a state of a first electric resistivity and a state of a second electric resistivity different from the first electric resistivity by a movement of the typical element, and an electrode layer which is disposed at one end of the recording layer to apply a voltage or a current to the recording layer. The recording layer includes a first region which is in contact with the electrode layer and the electrode layer includes a second region which is in contact with the recording layer. The first and second regions are opposite to each other. And the first and second regions include the typical element, and a concentration of the typical element in the second region is higher than that in the first region.
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