Reflection of spin and spin-elastic waves at the interface of a ferromagnetic half-space

Danoyan, Z.N.; Piliposian, G.T.; Hasanyan, Davresh

doi:10.1080/17455030903033182

Cited by 8 publications

(4 citation statements)

References 15 publications

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“…[7][8][9][10][11] Recently there is a large number of works devoted to the study of one-and two-dimensional planar magnon crystals formed by periodic structuring of monolayer magnetic films, most often yttrium iron garnet 12,13 or transition metals. [14][15][16] However, since in the magnon devices the topology is essential, it is necessary to study properties of connections between different parts of structural elements of magnonic devices and metamaterials.…”

Section: Introductionmentioning

confidence: 99%

An effect of the curvature induced anisotropy on the spectrum of spin waves in a curved magnetic nanowire

Tkachenko

Kuchko

Kruglyak

2013

Low Temperature Physics

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Within the framework of the solid state theory, an expression for the spectrum of spin waves propagating in a thin magnetic nanowire curled into a helix (spiral) is obtained. Its modification under the effect of a periodic modulation of the helical pitch is analyzed. In particular, it is shown that the periodic modulation of the helix pitch leads to the appearance of band gaps in the spectrum of spin waves. The influence of the modulation depth of the helical pitch on a size of the first gap is considered.

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Section: Introductionmentioning

confidence: 99%

An effect of the curvature induced anisotropy on the spectrum of spin waves in a curved magnetic nanowire

Tkachenko

Kuchko

Kruglyak

2013

Low Temperature Physics

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“…At the same time, there have been dramatic advances in experimental techniques, both for preparing high-quality magnetic thin films and superlattices as well as for studying the spin-wave excitations [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Antiplane Shear Waves in Two Contacting Ferromagnetic Half Spaces

Hasanyan

Batra

2010

J Elast

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The problem of reflection and refraction of antiplane shear (or magneto-elastic) waves at the interface between two ferromagnetic half-spaces with slipping contact (vacuum gap) is studied for waves propagating normal to the direction of the applied external magnetic field which is assumed to be parallel to the interface. We show the existence of new waves that are localized near the interface between the two ferromagnetic media and accompany the reflected and the transmitted waves. We call the new waves as accompanying surface magneto-elastic (ASME) waves; their amplitudes depend upon values of magnetoelastic parameters of the two media and the intensity of the applied magnetic field. We derive closed-form expressions for magnitudes (coefficients) of the reflected, the refracted (transmitted) and the ASME waves. We show that for a range of values of the applied magnetic field the coefficient of the reflected wave increases and that of the transmitted wave decreases with an increase in the magnitude of the applied magnetic field; these coefficients eventually approach 1 and 0, respectively. That is, the applied external magnetic field can totally eliminate the transmitted wave, and can control energies of the reflected, the refracted and the ASME waves.

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“…Данная работа посвящена вопросам существования и распространения упруго-спиновых волн типа Лява в слоистой структуре ферромагнит-диэлектрик. Задача решается с использованием уравнений, учитывающих взаимосвязь спиновых (магнитных) и упругих возмущений [1][2][3][4][5][6][7][8][9], а также уравнения механического движения среды, уравнения Ландау-Лифшица, описывающие движение плотности магнитного момента.…”

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Propagation of elastic-spin waves in magneto-ordered two-layer structures

Agհayan¹,

Atoyan²,

Terzyan³

2019

Mechanics - Proceedings of National Academy of Sciences of Armenia

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In this paper we study the propagation of elastic-spin waves of the Love type in two-layer magnet-nonmagnet media. The case is considered when one edge is free and the other is fixed. The condition for the existence of the elasticspin waves is found and the corresponding dispersion equation is obtained. A comparative numerical analysis was then carried out to determine the degree of influence of the magnetic properties of the layer on the dispersion picture. Աղայան Կ.Լ., Աթոյան Լ.Հ., Թերզյան Ս.Հ. Առաձգասպինային ալիքների տարածումը մագնիսական երկշերտանի կառույցներում Հիմնաբառեր՝ Առաձգա-սպինային ալիքներ, երկշերտ կառույց, Լյավի ալիքներ Այս հոդվածում ուսումնասիրվում է առաձգա-սպինային Լյավի տեսքի ալիքների տարածումը երկշերտ մագնիս-ոչմագնիս կառուցվածքում: Կառուցվածքի մի եզրը ազատ է, իսկ մյուսը ամրակցված: Ստացված են առաձգա-սպինային ալիքների գոյության պայմանը և համապատասխան դիսպերսիոն հավասարումը: Այնուհետեւ կատարվել է համեմատական թվային վերլուծություն, որոշելու համար շերտի մագնիսական հատկությունների ազդեցությունը դիսպերսիոն պատկերի վրա: В данной работе исследуется распространение упруго-спиновых волн в двухслойных средах магнитнемагнит. Рассматривается случай, когда один край свободен, а другой закреплен. Найдено условие существования упруго-спиновых волн и получено соответствующее дисперсионное уравнение. Далее проведён сравнительный численный анализ с целью определения степени влияния магнитных свойств слоя на дисперсионную картину.

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Reflection of spin and spin-elastic waves at the interface of a ferromagnetic half-space

Cited by 8 publications

References 15 publications

An effect of the curvature induced anisotropy on the spectrum of spin waves in a curved magnetic nanowire

An effect of the curvature induced anisotropy on the spectrum of spin waves in a curved magnetic nanowire

Antiplane Shear Waves in Two Contacting Ferromagnetic Half Spaces

Propagation of elastic-spin waves in magneto-ordered two-layer structures

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