Low‐Damping Spin‐Wave Transmission in YIG/Pt‐Interfaced Structures

Serha, Rostyslav O.; Bozhko, Dmytro A.; Agrawal, Milan; Verba, Roman; Kostylev, Mikhail; Vasyuchka, Vitaliy I.; Hillebrands, B.; Serga, Alexander A.

doi:10.1002/admi.202201323

Cited by 7 publications

(2 citation statements)

References 32 publications

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“…To be specific, we use Pt as a spacer layer in the simulations and assume the WGs to be interlayer-exchange coupled, but the conclusions are also valid for other spacer materials and WGs coupling schemes. Yttrium iron garnet (YIG) interfaced with Pt [46][47][48] is a prototypical example. We are interested in magnons that transport heat over a remote distance.…”

Section: Theoretical Modelmentioning

confidence: 99%

PT‐Symmetry Enabled Spintronic Thermal Diodes and Logic Gates

Wang,

Guo,

Berakdar

2023

Adv Elect Materials

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Devices for performing computation and logic operations with low‐energy consumption are of key importance for environmentally friendly data processing and information technology. Here, a design for magnetic elements that use excess heat to perform logic operations is presented. The basic information channel is coupled non‐conductive magnetic stripes with a normal metal spacer. The thermal information signal is embodied in magnetic excitations and it can be transported, locally enhanced, and controllably steered by virtue of charge current pulses in the spacer. Functionality of essential thermal logic gates is demonstrated by material‐specific simulations. The operation principle takes advantage of the special material architecture with a balanced gain/loss mechanism for magnetic excitation which renders the circuit parity‐time symmetric with exceptional points tunable by the current strength in the spacer. Heat flow at these points can be enhanced, be non‐reciprocal, or may oscillate between the information channels enabling controlled thermal diode and thermal gate operations. The findings point to a new route for exploiting heat for useful work on the nanoscale.

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Section: Theoretical Modelmentioning

confidence: 99%

PT‐Symmetry Enabled Spintronic Thermal Diodes and Logic Gates

Wang,

Guo,

Berakdar

2023

Adv Elect Materials

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“…В свою очередь, спиновый ток Is, инжектируемый в платину, преобразуется в электрический Ic за счет обратного спинового эффекта Холла (ОСЭХ) [7]. Отметим, что ранее исследовалась спиновая накачка поверхностными (ПМСВ) [8] и обратными объемными магнитостатическими волнами [9] в ЖИГ/Pt, однако сравнение их эффективности в рамках одной структуры не проводилось. В работе с помощью (ОСЭХ) показаны отличия в спиновой накачке бегущими ПМСВ и ООМСВ.…”

Section: Introductionunclassified

Influence of the type of magnetostatic wave on spin pumping in yig/pt microstructures

Seleznev,

Nikulin,

Khivintsev

et al. 2023

JRE

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Using the inverse spin Hall effect (ISHE), spin pumping by traveling surface waves (MSSW) and backward volume waves (BVMSW) in YIG/Pt microstructures has been experimentally studied. It has been discovered that the frequency dependence of the emf UISHE(f), generated due to the ISHE, in the case of BVMSW is characterized by a maximum near the frequency of the long-wave (f0) spectrum boundary. In the case of a MSSW, the dependence UISHE (f) exhibits maxima both at the frequency f0 and at the frequency fs of the short-wave boundary of the MSSW spectrum. The indicated differences in the dependences UISHE (f) for MSSW and OOMSW are explained by the difference in the functions of the density of states of spin waves in the spectrum of MSSW and BVMSW.

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