Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session A68: Artificial Spin Ice – The Next Generation
8:00 AM–11:00 AM,
Monday, March 6, 2023
Room: Room 420
Sponsoring
Unit:
GMAG
Chair: Cristiano Nisoli, Los Alamos Natl Lab
Abstract: A68.00003 : Tuning magnetic order in artificial kagome spin ice*
9:12 AM–9:48 AM
Presenter:
Kevin Hofhuis
(Yale University)
Authors:
Kevin Hofhuis
(Yale University)
Sandra H Skjærvø
(ETH Zurich/Paul Scherrer Institute)
Sergii Parchenko
(ETH Zurich/Paul Scherrer Institute)
Hanu Arava
(ETH Zurich/Paul Scherrer Institute)
Zhaochu Luo
(ETH Zurich)
Armin Kleibert
(Paul Scherrer Institute)
Peter M Derlet
(Paul Scherrer Institute/ETH Zurich)
Laura J Heyderman
(ETH Zurich)
Specifically, I will focus on the fabrication of nanomagnetic bridges, placed asymmetrically at the vertices, to control the degree of frustration in the system [3]. We obtain various degrees of magnetic ordering and two phases. We then utilize the thermally active system to show that we can image a phase transition using temperature-dependent X-ray photoemission electron microscopy. The frustration is quantified to show why certain artificial spin ice systems can, or have not yet,m been seen in their magnetic ground states.
Reference:
[1] K. Hofhuis, A. Hrabec, H. Arava, N. Leo, Y.L. Huang, R.V. Chopdekar, S. Parchenko, A. Kleibert, S. Koraltan, C. Abert, C. Vogler, D. Suess, P.M. Derlet, & L.J. Heyderman, Physical Review B 102, 180405(R) (2020)
[2] G. Moller & R. Moessner, Physical Review B 80, 140409(R) (2009).
[3] K. Hofhuis, S. H. Skjærvø, S. Parchenko, H. Arava, Z. Luo, A. Kleibert, P. M. Derlet, & L. J. Heyderman, Nature Physics 18, 699 (2022)
*K.H. acknowledges support from the Swiss National Science Foundation project no. 200020_172774.
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