H2020Индивидуална стипендия2018–2020

MUST · Magnetoelectric Ultra-low-power Spin-wave Transducers

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2018-04-01 → 2020-03-31
Финансиране от ЕС: 160 800 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Магнетоелектричните ефекти се изследват за създаване на преобразуватели, които управляват спинови вълни чрез електрическо поле. Това помага за разработването на по-малки електронни компоненти с ниска консумация на енергия, които могат да се интегрират в съвременната микроелектроника.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Magnetoelectric Ultra-low-power Spin-wave Transducers

Electric-field control is an enabling solution for many emerging applications of magnetism, which have been so far rendered uncompetitive due to large power dissipation. Hence, magnetoelectric (ME) effect has seen a renaissance as an effective way to manipulate magnetization state in a magnetic medium by electric field/voltage. Almost all studies on magnetoelectricity have addressed the DC or low-frequency AC behaviour and only few studies have examined the coupling of GHz AC electric fields to ultrafast magnetisation dynamics, such as ferromagnetic resonance (FMR) or spin waves (SWs). Thus, the implementation of MUST has investigated and laid the groundwork for realizing magnetoacoustic spin wave (SW) transducer to enable device for magnonics logic. The targeted breakthrough of MUST is to quantify ME effect in a scaled structure and the demonstration of magnetoacoustic SW transducers with large bandwidth, small size that can be integrated into a complementary metal-oxide semiconductor (CMOS) microelectronics environment. The devices and structures within MUST will be designed to be relevant to applications in spintronic and magnonic logic devices. To achieve this goal, over the course of 2 years, starting from April 01, 2018 and ending on March 31, 2020, the principal investigator along with his supervisor and team colleagues, have researched different aspects of ME effect. Due to the nature of complexity, the project has been modified and adjusted to address two key objectives: 1. To quantify magnetoelectric effect in different multiferroic composites with a view to tailor their properties, enabling ME spin wave emission and propagation. 2. To demonstrate a scaled ME spin wave transducer in the proposed ‘fringe capacitor device’ geometry in MUST for a scalable magnonic device application. To meet these objectives, the work packages in MUST have been divided into 3 categories (WP1: Quantification, WP2 & WP3: Demonstration) where focus has been on the first two (WP1, WP2) concentrating on material and device fabrication before addressing spin wave emission.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The ability to control the magnetisation of magnetic materials by electric fields is highly desirable from both scientific and technological viewpoints. Magnetoelectric materials are materials that link electric fields to magnetic properties via mechanical degrees of freedom. Using such materials, we propose to control ultrafast magnetisation dynamics by GHz electric fields and develop novel hybrid electro-magneto-mechanical devices at the nanoscale. More specifically, we propose magnetoelectric devices that act as transducers between electrical and magnetic domains. MUST will use magnetoelectric composites, consisting of piezoelectric and magnetostrictive bilayers, to generate spin waves or excite ferromagnetic resonance using electric signals via mechanical strain. MUST will investigate geometries exerting in-plane or out-of-plane stress to achieve the highest magnetoelectric coupling and enable the most energy efficient spin wave generation and detection. Moreover, MUST intends to study magnetoelectric composites at the magnetoacoustic resonance, with the promise of a strongly enhanced magnetoelectric coupling. The targeted small lateral scale (500 nm) and high operation frequency (bandwidth above 20 GHz) bring such transducers to the frontier of ultrasound devices. Furthermore, MUST will experimentally demonstrate a novel approach for spin wave excitation by the vibration of a magnetic domain wall induced by mechanical actuation in a magnetoelectric transducer.By an interdisciplinary approach combining magnonics and ultrasound devices, as well as nanofabrication, MUST intends to enhance the understanding of the almost unexplored territory of magnetoelectric phenomena at the nanoscale and at GHz frequencies and establish a versatile magnetoelectric transducer platform that can be used in various magnonic (logic) applications.

Оригинален текст от CORDIS (на английски).

Участници

INTERUNIVERSITAIR MICRO-ELECTRONICA CENTRUM · LeuvenКоординаторБелгия