| 書目名稱 | Thermal Stability of Metastable Magnetic Skyrmions | | 編輯 | Louise Desplat | | 視頻video | http://file.papertrans.cn/925/924405/924405.mp4 | | 概述 | Nominated as an outstanding Ph.D. thesis by the Université Paris-Saclay, Palaiseau, France.Valuable study of a potential alternative information processing and storage system.Provides a useful referen | | 叢書名稱 | Springer Theses | | 圖書封面 |  | | 描述 | The energy cost associated with modern information technologies has been increasing exponentially over time, stimulating the search for alternative information storage and processing devices. Magnetic skyrmions are solitonic nanometer-scale quasiparticles whose unique topological properties can be thought of as that of a Mobius strip. Skyrmions are envisioned as information carriers in novel information processing and storage devices with low power consumption and high information density. As such, they could contribute to solving the energy challenge..In order to be used in applications, isolated skyrmions must be thermally stable at the scale of years. In this work, their stability is studied through two main approaches: the Kramers‘ method in the form of Langer‘s theory, and the forward flux sampling method. Good agreement is found between the two methods. We find that small skyrmions possess low internal energy barriers, but are stabilized by a large activation entropy. This is a direct consequence of the existence of stable modes of deformation of the skyrmion. Additionally, frustrated exchange that arises at some transition metal interfaces leads to new collapse paths in the | | 出版日期 | Book 2021 | | 關(guān)鍵詞 | Magnetic Skyrmions; Thermal Stability; Kramers Method; Forward Flux Sampling; Geodesic Nudged Elastic Ba | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-030-66026-0 | | isbn_softcover | 978-3-030-66028-4 | | isbn_ebook | 978-3-030-66026-0Series ISSN 2190-5053 Series E-ISSN 2190-5061 | | issn_series | 2190-5053 | | copyright | The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl |
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