Joint Annual Meeting of the Swiss and Austrian Physical Society 2023

【640】Phase Transitions and Magnetic Order in a Ruby Lattice Artificial Spin Ice

5 Sept 2023, 19:00

1h 30m

Hall 1st floor

Poster Spintronics and Magnetism at the Nanoscale Poster Session

Speaker

Luca Berchialla (Paul Sherrer)

Description

Artificial spin ice are arrangements of dipolar coupled nanomagnets, which exhibit a range of interesting behaviour. Here, we study an artificial spin ice based on the ruby lattice. This pattern has a complex unit cell with 12 nanomagnets and two lattice constants that define it. By varying the two lattice constants independently, we can change the interaction between nanomagnets. Using x-ray photoemission electron microscopy we observed different ordering mechanisms depending on the lattice constants. Moreover, the system can order in one or two steps as shown by Monte Carlo simulations.