Vertex micromagnetic energy in artificial square ice

Yann Perrin; Benjamin Canals; Nicolas Rougemaille

doi:10.1117/12.2238580

4 November 2016 Vertex micromagnetic energy in artificial square ice

Yann Perrin, Benjamin Canals, Nicolas Rougemaille

Proceedings Volume 9931, Spintronics IX; 99311O (2016) https://doi.org/10.1117/12.2238580
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Artificial arrays of interacting magnetic elements provide an uncharted arena in which the physics of magnetic frustration and magnetic monopoles can be observed in real space and in real time. These systems offer the formidable opportunity to investigate a wide range of collective magnetic phenomena with a lab-on-chip approach and to explore various theoretical predictions from spin models. Here, we study artificial square ice systems numerically and use micromagnetic simulations to understand how the geometrical parameters of the individual magnetic elements affect the energy levels of an isolated square vertex. More specifically, we address the question of whether the celebrated square ice model could be made relevant for artificial square ice systems. Our work reveals that tuning the geometry alone should not allow the experimental realization of the square ice model when using nanomagnets coupled through the magnetostatic interaction. However, low-aspect ratios combined with small gaps separating neighboring magnetic elements of moderated thickness might permit approaching the ideal case where the degeneracy of the ice rule states is recovered.

Conference Presentation

Citation Download Citation

Yann Perrin, Benjamin Canals, and Nicolas Rougemaille "Vertex micromagnetic energy in artificial square ice", Proc. SPIE 9931, Spintronics IX, 99311O (4 November 2016); https://doi.org/10.1117/12.2238580

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available