Voltage-Controlled Reconfigurable Magnonic Crystal at the Sub-micrometer Scale

被引：19

作者：

Merbouche, Hugo ^{[1
]}

Boventer, Isabella ^{[1
]}

Haspot, Victor ^{[1
]}

Fusil, Stephane ^{[1
,2
]}

Garcia, Vincent ^{[1
]}

Gouere, Diane ^{[1
]}

Carretero, Cecile ^{[1
]}

Vecchiola, Aymeric ^{[1
]}

Lebrun, Romain ^{[1
]}

Bortolotti, Paolo ^{[1
]}

Vila, Laurent ^{[3
]}

Bibes, Manuel ^{[1
]}

Barthelemy, Agnes ^{[1
]}

Anane, Abdelmadjid ^{[1
]}

机构：

[1] CNRS, Unite Mixte Phys, Thales, F-91767 Palaiseau, France

[2] Univ Evry, F-91000 Evry, France

[3] Univ Grenoble Alpes, CNRS, Grenoble INP, F-38000 Grenoble, France

来源：

ACS NANO | 2021年 / 15卷 / 06期

基金：

欧盟地平线“2020”;

关键词：

magnonics; functional oxides; reconfigurable magnonic crystal; voltage control; spin waves; frequency filtering; SPIN-WAVE SPECTRUM; FERROMAGNETIC-FILMS; EXCHANGE BIAS; MULTIFERROICS;

D O I：

10.1021/acsnano.1c00499

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Multiferroics offer an elegant means to implement voltage control and on the fly reconfigurability in microscopic, nanoscaled systems based on ferromagnetic materials. These properties are particularly interesting for the field of magnonics, where spin waves are used to perform advanced logical or analogue functions. Recently, the emergence of nanomagnonics is expected to eventually lead to the large-scale integration of magnonic devices. However, a compact voltage-controlled, on demand reconfigurable magnonic system has yet to be shown. Here, we introduce the combination of multiferroics with ferromagnets in a fully epitaxial heterostructure to achieve such voltage-controlled and reconfigurable magnonic systems. Imprinting a remnant electrical polarization in thin multiferroic BiFeO3 with a periodicity of 500 nm yields a modulation of the effective magnetic field in the micrometer-scale, ferromagnetic La2/3S1/3MnO3 magnonic waveguide. We evidence the magnetoelectric coupling by characterizing the spin wave propagation spectrum in this artificial, voltage induced, magnonic crystal and demonstrate the occurrence of a robust magnonic band gap with >20 dB rejection.

引用

页码：9775 / 9781

页数：7