Abstract
We explore the thermodynamics in two-dimensional arrays consisting of Ising-type nanomagnets lithographically arranged onto random sites and angular orientations. Introducing these basic spin-glass ingredients, we study the characteristic features of the low-energy states achieved, following thermal-annealing protocols. From direct visualization of real-time dynamics, we record relaxation timescales together with magnetic susceptibility variations over temperature, revealing trends towards short-range order as randomness is increased, but falling short of pure spin-glass behavior. Our work provides a route towards the realization of artificial Ising spin-glass systems.
Original language | English |
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Article number | 224403 |
Number of pages | 7 |
Journal | Physical Review B |
Volume | 99 |
Issue number | 22 |
DOIs | |
Publication status | Published - 3 Jun 2019 |
MoE publication type | A1 Journal article-refereed |
Keywords
- CRITICAL EXPONENTS
- ICE
- ENERGY