Journal ArticleDOI
Magnetostatic Modes in Ferromagnetic Resonance
TLDR
In this paper, the authors examined the mode spectrum of spheroids for the case, which may often hold in practice, where exchange and electromagnetic propagation can be ignored simultaneously, where the spheroid was found to have longwavelength modes of oscillation of the ferromagnetic sample.Abstract:
It has been found recently that in ferromagnetic resonance experiments performed in inhomogeneous rf exciting fields at a fixed frequency, absorption of power takes place at a number of distinct magnetic fields. This is ascribed to the existence of long-wavelength modes of oscillation of the ferromagnetic sample. The mode spectrum of spheroids is examined for the case, which may often hold in practice, where exchange and electromagnetic propagation can be ignored simultaneously.read more
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Journal ArticleDOI
Magnetostatic modes of a ferromagnet slab
R.W. Damon,J.R. Eshbach +1 more
TL;DR: In this paper, a thin slab magnetized in its plane is obtained in the magnetostatic limit and the mode distribution in wave-vector space is obtained for both the volume and surface modes, and the dependence of mode density on wavelength is discussed.
Surface Waves
TL;DR: In this paper, the evanescent field structure over the wave front, as represented by equiphase planes, is identified as one of the most important and easily recognizable forms of surface wave.
Journal ArticleDOI
Sub-diffractional volume-confined polaritons in the natural hyperbolic material hexagonal boron nitride
Joshua D. Caldwell,Andrey V. Kretinin,Yiguo Chen,Vincenzo Giannini,Michael M. Fogler,Yan Francescato,Chase T. Ellis,Joseph G. Tischler,Colin R. Woods,Alexander J. Giles,Minghui Hong,Kenji Watanabe,Takashi Taniguchi,Stefan A. Maier,Kostya S. Novoselov +14 more
TL;DR: Three-dimensionally confined 'hyperbolic polaritons' in boron nitride nanocones that support four series (up to the seventh order) modes in two spectral bands are reported on.
Journal ArticleDOI
Optical phonons of small crystals
TL;DR: In this article, the long wavelength optical phonons of ionic crystals give rise to dipole-dipole forces, whose long range nature causes the vibrations to depend on the size and shape of the crystal sample.
Journal ArticleDOI
Hybrid quantum systems based on magnonics
TL;DR: In this paper, a new class of hybrid quantum systems based on collective spin excitations in ferromagnetic materials has led to a diverse set of experimental platforms which are outlined in this review article.