Patent · US Active

Magnetization switching through magnonic spin transfer torque

US8908424B2 · kind B2 · utility

3Cited by

10References

13Claims

0Family size

Assignee

The Hong Kong University of Science and Technology

Inventors

Xiangrong Wang · Beijing, CN
Peng Yan · Kyoto, JP
Xiansi Wang · Kowloon, CN

Key dates

Filing date	Sep 28, 2012
Grant date	Dec 9, 2014
Priority date	—
Expiry date	Jan 10, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG11B2005/0002
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The subject application describes systems and methods that drive magnetization switching through magnonic spin transfer torque. A spin current is provided to a first magnetic layer with a first magnetic state. The spin current facilitates magnetization switching via a magnonic spin transfer torque in a second magnetic layer with a second magnetic state that is separated from the first magnetic layer by an interface. Alternatively, a spin current is provided to a first magnetic domain with a first magnetic state. The spin current facilitates domain wall propagation via a magnonic spin transfer torque. The domain wall is between the first magnetic domain and a second magnetic domain in a second magnetic state.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.