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arXiv · 2204.01761

Prethermal nematic order and staircase heating in a driven frustrated Ising magnet with dipolar interactions

Hui-Ke Jin·Andrea Pizzi·Johannes Knolle
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Abstract

Many-body systems subject to a high-frequency drive can show intriguing thermalization behavior. Prior to heating to a featureless infinite-temperature state, these systems can spend an exponentially long time in prethermal phases characterized by various kinds of order. Here, we uncover the rich non-equilibrium phase diagram of a driven frustrated two-dimensional Ising magnet with competing short-range ferromagnetic and long-range dipolar interactions. We show that the ordered stripe and nematic phases, which appear in equilibrium as a function of temperature, underpin subsequent prethermal phases in a new multi-step heating process en route towards the ultimate heat death. We discuss implications for experiments on ferromagnetic thin films and other driving induced phenomena in frustrated magnets.

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Hui-Ke Jin, Andrea Pizzi, Johannes Knolle. 2022-04-04. Prethermal nematic order and staircase heating in a driven frustrated Ising magnet with dipolar interactions. https://doi.org/10.1103/physrevb.106.144312

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