Realizing Quantitative Quasiparticle Modeling of Skyrmion Dynamics in Arbitrary Potentials.

• Tác giả: Maarten A Brems, Leonie-C Dany, Oded Farago, Simon M Fröhlich, Elizabeth M Jefremovas, Fabian Kammerbauer, Mathias Kläui, Jan Rothörl, Tobias Sparmann, Peter Virnau
• Ngôn ngữ: eng
• Ký hiệu phân loại: 271.6 *Passionists and Redemptorists
• Thông tin xuất bản: United States : Physical review letters , 2025
• Bộ sưu tập: NCBI
• ID: 90301

Tóm tắt

We demonstrate fully quantitative Thiele model simulations of magnetic skyrmion dynamics on previously unattainable experimentally relevant large length and time scales by ascertaining the key missing parameters needed to calibrate the experimental and simulation timescales and current-induced forces. Our work allows us to determine complete spatial pinning energy landscapes that enable quantification of experimental studies of diffusion in arbitrary potentials within the Lifson-Jackson framework. Our method enables us to ascertain the timescales, and by isolating the effect of ultralow current density (order 10^{6}  A/m^{2}) generated torques we directly infer the total force acting on the skyrmion for a quantitative modeling.