Electro-resistance element and electro-resistance memory using the same

摘要

A electro-resistance element with good heat treatment stability under a hydrogen-containing atmosphere and a electro-resistance memory with good resistance change characteristics and productivity are provided. The electro-resistance element has two or more states in which electric resistance values are different, and is switchable from one of the states selected from the two or more states into another by application of a predetermined voltage or current. The electro-resistance element includes a pair of electrodes, and an oxide semiconductor layer sandwiched by the pair of electrodes and having a perovskite structure, and the conductivity type of the oxide semiconductor layer is n-type. The electro-resistance memory is provided with the electro-resistance element.