@article{1433768,
      recid = {1433768},
      author = {Desplat, Louise.},
      title = {Thermal stability of metastable magnetic skyrmions /},
      pages = {1 online resource (xix, 152 pages)},
      note = {"Doctoral Thesis accepted byUniversity of Glasgow,  Glasgow, United Kingdom."},
      abstract = {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 arise at  some transition metal interfaces leads to new collapse  paths in the form of the partial nucleation of the  corresponding antiparticle, as merons and antimerons.},
      url = {http://library.usi.edu/record/1433768},
      doi = {https://doi.org/10.1007/978-3-030-66026-0},
}