Directional Field-Dependence of Magnetoimpedance Effect on Integrated YIG/Pt-Stripline System

Abstract

We investigated the magnetization dynamics through the magnetoimpedance effect in an integrated YIG/Pt-stripline system in the frequency range of 0.5 up to 2.0 GHz. Specifically, we explore the dependence of the dynamic magnetic behavior on the field orientation by analyzing beyond the traditional longitudinal magnetoimpedance effect of the transverse and perpendicular setups. We disclose here the strong dependence of the effective damping parameter on the field orientation, as well as verification of the very-low damping parameter values for the longitudinal and transverse configurations. We find considerable sensitivity results, bringing to light the facilities to integrate ferrimagnetic insulators in current and future technological applications.

Assessing the relaxation mechanisms contributions on magnetoimpedance effect in YIG/W bilayers

“…It has been recently shown the MI response can be manipulated by changing the α eff [26,27]. However, it is quite intriguing the lack of investigations about the role of the relaxation mechanisms on the MI response.…”

“…It is known the electric nature of the material and/or geometry of the sample (single layer, bilayer, multilayer) are important for obtaining a significant MI response. Curiously enough, in the last years, the MI effect has received renewed interest going beyond conductive materials and looking at systems consisting of a magnetic insulator capped by a nonmagnetic metal [25][26][27]. However, it is possible to observe a lack of results in which the role of SP and TMS in the MI response is effectively discussed and quantified.…”

Особенности перемагничивания двухслойной пленочной структуры ЖИГ/FeNi

“…Пленки ЖИГ, интерес к которым много лет назад был обусловлен их применением в технике магнитных цилиндрических доменов (ЦМД) [1], в настоящее время вновь являются предметом активного внимания как часть структур, используемых в устройствах магноники и других приложениях, основанных на особенностях магнитодинамики материалов [2][3]. Как в ЦМД устройствах, так и в элементах СВЧ-электроники и спинтроники пленки ЖИГ могут находиться в контакте с ферромагнитными металлическими пленками, что приводит к возникновению магнитного взаимодействия между ними [1,[4][5][6].…”

Strain Control of Magnetic Anisotropy in Yttrium Iron Garnet Films in a Composite Structure with Yttrium Aluminum Garnet Substrate

“…Bismuth-substituted YIG and several RIGs show high Faraday rotation and are useful for applications such as magnetic field sensors [4][5][6]. YIG is one of the materials with the lowest losses at high frequencies and is used in microwave devices including resonators, filters, and RF sensors [7][8][9][10][11]. Spin waves in nano-structures of YIG, referred to as YIG magnonics, are of interest for information storage and processing technologies [7].…”