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Título del libro: Spin Wave Confinement: Propagating Waves, Second Edition
Título del capítulo: Spin waves on spin structures: Topology, localization, and nonreciprocity

Autores UNAM:
PABLO ANTONIO BORYS SOSA;
Autores externos:

Idioma:

Año de publicación:
2017
Resumen:

Spintronics exists because of an extra degree of freedom provided by electron spin that can be used for carrying information. Whereas information can be manipulated and transported using charge, this comes at a cost due to the concurrent and inherent generation of Joule heating. An alternative mechanism for transporting information through the spin variable is available and, in fact, has been studied for over 80 years. Spin waves and their particle-like counterpart, magnons, are the low-lying energy 220states of spin systems and were first predicted by Bloch [4,25,38,43]. Not only do spin wave excitations exhibit a wide variety of linear and nonlinear properties (which makes them interesting for fundamental research), they also exist in the gigahertz to terahertz region of the frequency spectrum, which is appropriate for telecommunications and information technologies. New technologies that allow the fabrication of devices in the nanoscale together have led to the discovery of phenomena such as spin pumping [88], spin transfer torque [2,80], and spin Hall effects [24,42]. The field now called magnonics is concerned with consequences of the fact that the transport and processing of information can be achieved without physical charge transport. © 2017 Pan Stanford Publishing Pte. Ltd.


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