Patent ID: 8269205

Claim:
An information recording and reproducing device comprising: a first interconnection extending in a first direction; a second interconnection extending in a second direction intersecting with the first interconnection; and a stacked body including a first layer, a second layer, and a recording laver, the stacked body being provided between the first interconnection and the second interconnection at an intersection of the first interconnection and the second interconnection and being supplied with a current via the first and second interconnections; the recording layer being provided between the first layer and the second layer and being capable of reversibly changing between a first state having a first resistance and a second state having a second resistance higher than the first resistance by the current supplied via the first layer and the second layer, the recording layer including: a first compound layer; and a second compound layer, the first compound layer containing a first compound, the first compound including a first cation element and a second cation element of a type different from the first cation element, at least one of the first cation element and the second cation element being a transition element having a d-orbital partially filled with electron, the second compound layer containing a second compound, the second compound including a transition element having a d-orbital partially filled with electron, and the second compound including a void site capable of storing at least one of the first cation element and the second cation element.