# DC spinmotive force from microwave-active resonant dynamics of skyrmion crystal under a tilted magnetic field

## TL;DR

This paper theoretically demonstrates that skyrmion crystals can convert microwave signals into a large DC voltage through resonant spin-wave modes, offering potential for spintronic device applications.

## Contribution

It reveals how microwave-active resonant modes in skyrmion crystals can generate a significant DC voltage, enabling microwave-to-electrical conversion in spintronics.

## Key findings

- Large DC voltage can be generated at eigenfrequencies of spin-wave modes.
- The DC voltage sign depends on microwave polarization and mode.
- Resonant enhancement significantly boosts voltage amplitude.

## Abstract

We theoretically show that a temporally oscillating spin-driven electromotive force or voltage with a large DC component can be generated by exciting microwave-active spin-wave modes of a skyrmion crystal confined in a quasi two-dimensional magnet under a tilted magnetic field. The DC component and the AC amplitude of the oscillating electric voltage is significantly enhanced when the microwave frequency is tuned to an eigenfrequency of the peculiar spin-wave modes of the skyrmion crystal called ``rotation modes" and ``breathing mode", whereas the sign of the DC component depends on the microwave polarization and on the spin-wave mode. These results provide an efficient means to convert microwaves to a DC electric voltage by using skyrmion-hosting magnets and to switch the sign of the voltage via tuning the microwave frequency, which are important capabilities for spintronic devices.