Spin wave and spin flip in hexagonal LuMnO3 single crystal

TL;DR

This study demonstrates selective excitation and control of spin waves and spin flips in hexagonal LuMnO3 single crystals using laser polarization and photon energy, advancing potential applications in magnonic and spintronic devices.

Contribution

It reveals that spin waves and spin flips in hexagonal LuMnO3 can be selectively manipulated with specific laser parameters, providing new insights into their physical origin.

Findings

Spin wave can be excited with laser polarization perpendicular to the c-axis.

Spin flip can be controlled via laser excitation in hexagonal LuMnO3.

Physical origin of spin wave and spin flip correlation discussed.

Abstract

Manipulate and control of spin wave and spin flip are crucial for future developments of magnonic and spintronic devices. We present that the spin wave in hexagonal LuMnO3 single crystal can be selectively excited with laser polarization perpendicular to the c-axis of hexagonal LuMnO3 and photon energy ~ 1.8 eV. The selective excitation of spin wave also suggests that the spin flip can be selectively controlled in hexagonal manganites. In addition, the physical origin of spin wave correlated with spin flip in hexagonal manganites is discussed.