Patent ID: 8847692
Filing Date: 2014-09-30
Classification: H03B

Abstract:
1. An oscillator, comprising: a magnetic layer; and a magnetization fixing element configured to fix a magnetization direction of the magnetic layer, wherein the oscillator is configured to generate a signal by using precession of a magnetic moment of the magnetic layer, wherein the magnetic fixing element has one of a first structure and a second structure, wherein the first structure includes a first separation layer, a first fixed layer, and a first antiferromagnetic layer sequentially formed on a surface of the magnetic layer, wherein the magnetic layer and the magnetic fixing element having the first structure form a synthetic antiferromagnet (SAF) structure such that the magnetic layer is included in the SAF structure, wherein the first fixed layer is configured to fix the magnetization direction of the magnetic layer, wherein the second structure includes a second antiferromagnetic layer directly contacting a surface of the magnetic layer, and wherein the second antiferromagnetic layer is configured to fix the magnetization direction of the magnetic layer.