US Patent Application 18193885. Spin Torque Oscillator Maser simplified abstract

Spin Torque Oscillator Maser

Organization Name

Massachusetts Institute of Technology

Inventor(s)

Luqiao Liu of Brookline MA (US)

Justin Hou of Cambridge MA (US)

Pengxiang Zhang of Cambridge MA (US)

Spin Torque Oscillator Maser - A simplified explanation of the abstract

This abstract first appeared for US patent application 18193885 titled 'Spin Torque Oscillator Maser

Simplified Explanation

The patent application describes an oscillator that includes a cavity with an electrical conductor, an electrical insulator on the cavity's surface, and a heterostructure on the insulator's surface. The heterostructure consists of spin current source layers and magnetic material layers. When an electrical current is passed through the spin current source, the magnetic material's magnetic domains undergo oscillations with the same phase.

• The patent application describes an oscillator design.
• The oscillator includes a cavity with an electrical conductor.
• An electrical insulator is placed on the surface of the cavity.
• A heterostructure is then placed on the insulator's surface.
• The heterostructure consists of one or more spin current source layers and one or more magnetic material layers.
• When an electrical current is passed through the spin current source, the magnetic material's magnetic domains oscillate.
• The oscillations of the magnetic domains have the same phase.

Original Abstract Submitted

An oscillator comprising, a cavity wherein the cavity comprises an electrical conductor. The oscillator comprising an electrical insulator disposed on a surface of the cavity; and a heterostructure disposed on a surface of the electrical insulator and having a first end and a second end, the heterostructure comprising one or more spin current source layers and one or more magnetic material layers. In response to an electrical current passed through the spin current source, an oscillation occurs in a plurality of magnetic domains of the magnetic material, wherein the oscillations have substantially the same phase.