Electronic device

An electronic device may include a semiconductor memory, and the semiconductor memory may include a free layer having a variable magnetization direction; a pinned layer having a fixed magnetization direction; and a tunnel barrier layer interposed between the free layer and the pinned layer, wherein...

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Bibliographische Detailangaben
Hauptverfasser: Lim, Jong-Koo, Kim, Yang-Kon, Jung, Ku-Youl, Lee, Jae-Hyoung
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An electronic device may include a semiconductor memory, and the semiconductor memory may include a free layer having a variable magnetization direction; a pinned layer having a fixed magnetization direction; and a tunnel barrier layer interposed between the free layer and the pinned layer, wherein the free layer may include: a first sublayer having a damping constant of 0.1 or less; a second sublayer having a perpendicular magnetic anisotropy energy density ranging from 1.0×104 to 1.0×108 erg/cm3; and an insertion layer interposed between the first sublayer and the second sublayer.