Recording method for magnetic memory device
AssigneeSony Corporation
InventorsHiroyuki Ohmori, Masanori Hosomi, Minoru Ikarashi, Tetsuya Yamamoto, Kazutaka Yamane, Yuki Oishi, Hiroshi Kano
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AssigneeSony Corporation
InventorsHiroyuki Ohmori, Masanori Hosomi, Minoru Ikarashi, Tetsuya Yamamoto, Kazutaka Yamane, Yuki Oishi, Hiroshi Kano
Estimating the term…
[Object] To provide a recording method for a magnetic memory device including a recording layer that holds information as a magnetization direction of a magnetic body and a magnetization reference layer that is provided with respect to the recording layer with an insulation layer interposed therebetween, the magnetic memory device being recorded with information by a current flowing between the recording layer and the magnetization reference layer via the insulation layer, the recording method being capable of maintaining, even when a write pulse considerably higher than an inversion threshold value is applied, the same level of error rate as in a case where a write pulse a little higher than the inversion threshold value is applied. [Solving Means] A recording method for a magnetic memory device includes applying, when recording one piece of information, one or more main pulses and one or more sub-pulses in the same direction and applying the one or more sub-pulses after the one or more main pulses, the one or more main pulses each being a pulse that has a sufficient pulse height and pulse width to record information, the one or more sub-pulses each being a pulse that satisfies at least one of conditions that a pulse width is shorter than that of the one or more main pulses and that a pulse height is smaller than that of the one or more main pulses.
A recording method for a magnetic memory device including at least a recording layer that is constituted of a ferromagnetic conductor, capable of changing a magnetization direction, and holds information as a magnetization direction of a magnetic body and a magnetization reference layer whose magnetization direction is fixed and that is provided with respect to the recording layer with an insulation layer interposed therebetween, constituted of a ferromagnetic conductor, and becomes a reference of the magnetization direction, the magnetic memory device being recorded with information by a current flowing between the recording layer and the magnetization reference layer via the insulation layer, the recording method comprising:
Dependencies are inferred from the claim text.