Name: Thermal Stability of Metastable Magnetic Skyrmions (en Inglés)
SKU: 57404648
Price: 2560.12 MXN
Availability: InStock
Author: Desplat, Louise
ISBN: 9783030660253

portada Thermal Stability of Metastable Magnetic Skyrmions (en Inglés)

Thermal Stability of Metastable Magnetic Skyrmions (en Inglés)

Formato

Libro Físico

Autor

Louise Desplat

Editorial

Springer

Idioma

Inglés

N° páginas

152

Encuadernación

Tapa Dura

Dimensiones

23.4x15.6x1.1 cm

Peso

0.42 kg.

ISBN13

9783030660253

Categorías

Ciencia de materiales
Medios de almacenamiento y dispositivos periféricos
Recuperación de información
Administración del sistema

Thermal Stability of Metastable Magnetic Skyrmions (en Inglés)

Louise Desplat (Autor) · Springer · Tapa Dura

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Reseña del libro "Thermal Stability of Metastable Magnetic Skyrmions (en Inglés)"

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 form of the partial nucleation of the corresponding antiparticle, as merons and antimerons.