REFRACTIVE INDEX AND SNELL'S LAW FOR DIPOLE-EXCHANGE SPIN WAVES IN RESTRICTED GEOMETRY

SPIN ◽  
2011 ◽  
Vol 01 (01) ◽  
pp. 27-31 ◽  
Author(s):  
DAE-EUN JEONG ◽  
DONG-SOO HAN ◽  
SANG-KOOG KIM
Keyword(s):  
Refractive Index ◽  
Spin Waves ◽  
Restricted Geometry ◽  
Micromagnetic Simulations ◽  
Thin Film System ◽  
Reflection And Refraction ◽  
Snell’S Law ◽  
Snell's Law ◽  
Iron Garnet ◽  
Dipole Exchange

We derived an analytic expression of refractive index for dipole-exchange spin waves (DESWs) in a laterally confined heterogeneous magnetic thin-film system and also derived Snell's law for DESWs by employing a dispersion relation and a specific boundary condition at a heterogeneous magnetic interface. These analytical results mimic well the macroscopic behaviors of propagation, reflection and refraction of DESWs, as obtained from micromagnetic simulations, for example, on a specific yttrium-iron-garnet ( Y 3 Fe 5 O 12) and permalloy ( Ni 80 Fe 20) interface.

Observation of parametric amplification of propagating dipole-exchange spin waves in yttrium iron garnet films

JETP Letters ◽  
1996 ◽  
Vol 64 (3) ◽  
pp. 171-176 ◽  
Author(s):  
B. A. Kalinikos ◽  
N. G. Kovshikov ◽  
M. P. Kostylev ◽  
H. Benner
Keyword(s):  
Yttrium Iron Garnet ◽  
Spin Waves ◽  
Parametric Amplification ◽  
Yttrium Iron ◽  
Garnet Films ◽  
Iron Garnet ◽  
Dipole Exchange

scholarly journals Snell's law for spin waves at a 90° magnetic domain wall

2020 ◽  
Vol 116 (11) ◽  
pp. 112402 ◽  
Author(s):  
Tomosato Hioki ◽  
Rei Tsuboi ◽  
Tom H. Johansen ◽  
Yusuke Hashimoto ◽  
Eiji Saitoh
Keyword(s):  
Domain Wall ◽  
Spin Waves ◽  
Magnetic Domain ◽  
Magnetic Domain Wall ◽  
Snell’S Law ◽  
Snell's Law

A Theorem on Ray Trajectories

1968 ◽  
Vol 1 (3) ◽  
pp. 107-108
Author(s):  
K.C. Westfold
Keyword(s):  
Refractive Index ◽  
Specific Intensity ◽  
Snell’S Law ◽  
Ray Trajectories ◽  
Snell's Law ◽  
Constant Refractive Index

The classical theorems on the intensity of radiation (e.g. Milne) depend on the geometry of rectilinear ray trajectories in uniform media. In particular, the theorem concerning the specific intensity I in a medium specified by an isotropic refractive index μ—that, where there are no gains due to emission or losses due to absorption or scattering, the quantity I/μ2 = constant—is proved by assuming that the medium consists of a series of regions of constant refractive index at whose plane interfaces the coefficients of reflection are zero. For these the geometry of the trajectories (Figure 1) is such that, by Snell’s law,

scholarly journals Tunable Snell's law for spin waves in heterochiral magnetic films

2018 ◽  
Vol 97 (10) ◽  
Author(s):  
Jeroen Mulkers ◽  
Bartel Van Waeyenberge ◽  
Milorad V. Milošević
Keyword(s):  
Spin Waves ◽  
Magnetic Films ◽  
Snell’S Law ◽  
Snell's Law

scholarly journals Negative refraction of dipole-exchange spin waves through a magnetic twin interface in restricted geometry

2008 ◽  
Vol 92 (21) ◽  
pp. 212501 ◽  
Author(s):  
Sang-Koog Kim ◽  
Sangkook Choi ◽  
Ki-Suk Lee ◽  
Dong-Soo Han ◽  
Dae-Eun Jung ◽  
...  
Keyword(s):  
Negative Refraction ◽  
Spin Waves ◽  
Twin Interface ◽  
Restricted Geometry ◽  
Dipole Exchange

scholarly journals Study of Surface Character of Micrometer-Scale Dipole-Exchange Spin Waves in an Yttrium Iron Garnet Film

2019 ◽  
Vol 55 (2) ◽  
pp. 1-4 ◽  
Author(s):  
Jinho Lim ◽  
Wonbae Bang ◽  
Jonathan Trossman ◽  
Andreas Kreisel ◽  
Matthias Benjamin Jungfleisch ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Spin Waves ◽  
Yttrium Iron ◽  
Garnet Film ◽  
Yttrium Iron Garnet Film ◽  
Surface Character ◽  
Iron Garnet ◽  
Dipole Exchange ◽  
Micrometer Scale ◽  
Iron Garnet Film

Double-wave-front reversal of dipole-exchange spin waves in yttrium-iron garnet films

2005 ◽  
Vol 98 (7) ◽  
pp. 074908 ◽  
Author(s):  
G. A. Melkov ◽  
V. I. Vasyuchka ◽  
A. V. Chumak ◽  
A. N. Slavin
Keyword(s):  
Wave Front ◽  
Yttrium Iron Garnet ◽  
Spin Waves ◽  
Yttrium Iron ◽  
Garnet Films ◽  
Iron Garnet ◽  
Dipole Exchange

scholarly journals Snell’s Law for Spin Waves

2016 ◽  
Vol 117 (3) ◽  
Author(s):  
J. Stigloher ◽  
M. Decker ◽  
H. S. Körner ◽  
K. Tanabe ◽  
T. Moriyama ◽  
...  
Keyword(s):  
Spin Waves ◽  
Snell’S Law ◽  
Snell's Law

Simple apparatus to calculate the refractive index of liquids based on Snell’s law

Measurement ◽  
2019 ◽  
Vol 134 ◽  
pp. 658-661 ◽  
Author(s):  
Uriel Rivera-Ortega ◽  
Carlos Roberto Hernández-Gómez ◽  
Guadalupe Vega-Torres ◽  
Mario Enrique Lopez-Medina
Keyword(s):  
Refractive Index ◽  
Simple Apparatus ◽  
Snell’S Law ◽  
Snell's Law
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