Nonvolatile memory device with recording layer having two portions of different nitrogen amounts

摘要

According to one embodiment, a nonvolatile memory device includes a stacked body including a first layer, a second layer and a recording layer. The recording layer is provided between the first layer and the second layer. The recording layer is capable of reversibly changing between a first state and a second state having a resistance higher than a resistance in the first state by a current supplied via the first layer and the second layer. The recording layer includes a first portion and a second portion provided in a plane of a major surface of the recording layer. The second portion has a nitrogen amount higher than a nitrogen amount in the first portion.