Rewritable Artificial Magnetic Charge Ice

TL;DR

This paper introduces a reconfigurable artificial magnetic charge ice with tunable long-range order and local write-read-erase capabilities, enabling advanced studies and applications in magnetic monopoles and magnonics.

Contribution

It presents a novel artificial spin structure that achieves tunable long-range magnetic charge order and demonstrates room-temperature local manipulation, enhancing control over magnetic configurations.

Findings

Achieved tunable long-range magnetic charge order in artificial spin structures.

Developed a technique for precise local manipulation of magnetic charge states.

Demonstrated write-read-erase functionality at room temperature.

Abstract

Artificial ices enable the study of geometrical frustration by design and through direct observation. However, it has proven difficult to achieve tailored long-range ordering of their diverse configurations, limiting both fundamental and applied research directions. We designed an artificial spin structure that produces a magnetic charge ice with tunable long-range ordering of eight different configurations. We also developed a technique to precisely manipulate the local magnetic charge states and demonstrate write-read-erase multifunctionality at room temperature. This globally reconfigurable and locally writable magnetic charge ice could provide a setting for designing magnetic monopole defects, tailoring magnonics, and controlling the properties of other two-dimensional materials.