Coherence transfer from optically induced THz magnons to charges

Area of Science:

• Condensed Matter Physics
• Materials Science
• Information Technology

Background:

• The digital economy relies heavily on data centers, driving demand for faster and more energy-efficient data processing.
• Terahertz (THz) magnons are promising for energy-efficient information transfer, but integrating them with current CMOS technology is challenging.
• A key hurdle is converting THz magnons into usable electrical signals.

Purpose of the Study:

• To demonstrate and understand the coherence transfer from optically driven THz magnons to charges.
• To identify the specific conditions required for this magnon-to-charge conversion.
• To develop a microscopic model explaining the observed experimental results.

Main Methods:

• Optically driving THz magnons in a material system.
• Measuring the resulting optical response to detect charge conversion.
• Formulating and validating a microscopic theoretical model.

Main Results:

• Successfully demonstrated coherence transfer from THz magnons to charges via an optical response.
• Identified the precise conditions necessary for efficient magnon-to-charge signal conversion.
• Developed a parameter-free microscopic model that accurately reproduces experimental findings.

Conclusions:

• This work provides a viable pathway for integrating THz magnons with CMOS technology.
• The demonstrated magnon-to-charge conversion is crucial for developing energy-efficient, high-speed information technologies.
• The findings pave the way for novel magnonic devices and advanced computing architectures.