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Scaling of Magnetic Domain Walls in Perpendicular Magnetic Anisotropy Systems
Guowen Gong, Changmin Xiong, Lijun Zhu
https://arxiv.org/abs/2510.10230 https://

Scaling of Magnetic Domain Walls in Perpendicular Magnetic Anisotropy Systems
Magnetic domain walls play a critical role in the nanoscale evolution of magnetic devices. Despite the early efforts, a complete understanding of the micromagnetic evolution of the width and the type of magnetic domain walls has still remained missing. Here, we report a combined analytical and micromagnetic simulation study and establish the scaling of the magnetic domains as a function of the exchange stiffness (A), uniaxial perpendicular magnetic anisotropy (Ku), saturation magnetization (Ms)…

Bayesian Nonhomogeneous hidden Markov models to leverage routine in physical activity monitoring with informative wear time
Beatrice Cantoni, Savannah V. Rauschendorfer, Michael E. Roth, J. Andrew Livingston, Eugenie S. Kleinerman, Corwin M. Zigler
https://arxiv.org/abs/2509.17806

Bayesian Nonhomogeneous hidden Markov models to leverage routine in physical activity monitoring with informative wear time
Missing data is among the most prominent challenges in the analysis of physical activity (PA) data collected from wearable devices, with the threat of nonignorabile missingness arising when patterns of device wear relate to underlying activity patterns. We offer a rigorous consideration of assumptions about missing data mechanisms in the context of the common modeling paradigm of state space models with a finite, meaningful, set of underlying PA states. Focusing in particular on hidden Markov m…