Magnetic charge's relaxation propelled electricity in two-dimensional magnetic honeycomb lattice

TL;DR

This paper demonstrates that magnetic charge relaxation in a two-dimensional artificial honeycomb lattice significantly enhances electrical conductivity at room temperature, revealing a new spintronic conduction mechanism.

Contribution

It provides the first experimental evidence linking magnetic charge dynamics to increased electrical conduction in 2D magnetic systems.

Findings

Electrical conductivity increases by over an order of magnitude at room temperature.

Magnetic charge defects relax in sub-picosecond timescales.

Potential for novel spintronic applications in 2D frustrated magnets.

Abstract

Emerging new concepts, such as magnetic charge dynamics in two-dimensional magnetic material, can provide novel mechanism for spin based electrical transport at macroscopic length. In artificial spin ice of single domain elements, magnetic charge's relaxation can create an efficient electrical pathway for conduction by generating fluctuations in local magnetic field that couple with conduction electrons spins. In a first demonstration, we show that the electrical conductivity is propelled by more than an order of magnitude at room temperature due to magnetic charge defects sub-picosecond relaxation in artificial magnetic honeycomb lattice. The direct evidence to the proposed electrical conduction mechanism in two-dimensional frustrated magnet points to the untapped potential for spintronic applications in this system.