It is shown that in in-plane magnetized ferromagnetic films there exist backward volume waves with a negative group velocity anti-parallel to the in-plane wave vector of propagation. Analytical expressions of the group velocity are given. Analogies and differences with electromagnetic waves propagating in backward-wave isotropic materials are discussed.
Magnetic Matter Spin Waves with “Negative” Group Velocity - Presentazione poster by R. Zivieri
ZIVIERI, Roberto
2015
Abstract
It is shown that in in-plane magnetized ferromagnetic films there exist backward volume waves with a negative group velocity anti-parallel to the in-plane wave vector of propagation. Analytical expressions of the group velocity are given. Analogies and differences with electromagnetic waves propagating in backward-wave isotropic materials are discussed.File in questo prodotto:
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