記憶素子

Storage cell

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage cell recording information with a small current and holding recorded information for a long period. <P>SOLUTION: The storage cell 10 has at least a storage layer 17 for holding information by the magnetization state of a magnetic material, and a magnetization fixed layer 21 provided relative the storage layer 17 via a non-magnetic layer 16. Information is recorded by passing a current between the storage layer 17 and the magnetization fixed layer 21 through the non-magnetic fixed layer 16. The storage layer 17 contains at least one kind of element selected from Fe, Co and Ni, and Gd. <P>COPYRIGHT: (C)2006,JPO&NCIPI
【課題】 小さい電流で情報を記録することができ、かつ記録された情報を長期間保持することができる記憶素子を提供する。 【解決手段】 情報を磁性体の磁化状態により保持する記憶層17と、この記憶層17に対して非磁性層16を介して設けられた磁化固定層21とを少なくとも有し、非磁性層16を通じて、記憶層17と磁化固定層21との間に電流を流すことにより情報の記録が行われ、記憶層17がFe,Co,Niから選ばれる少なくとも1種の元素とGdとを含有する記憶素子10を構成する。 【選択図】 図1

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