A Review of Thin-Film Magnetoelastic Materials for Magnetoelectric Applications

Abstract

Since the revival of multiferroic laminates with giant magnetoelectric (ME) coefficients, a variety of multifunctional ME devices, such as sensor, inductor, filter, antenna etc. have been developed. Magnetoelastic materials, which couple the magnetization and strain together, have recently attracted ever-increasing attention due to their key roles in ME applications. This review starts with a brief introduction to the early research efforts in the field of multiferroic materials and moves to the recent work on magnetoelectric coupling and their applications based on both bulk and thin-film materials. This is followed by sections summarizing historical works and solving the challenges specific to the fabrication and characterization of magnetoelastic materials with large magnetostriction constants. After presenting the magnetostrictive thin films and their static and dynamic properties, we review micro-electromechanical systems (MEMS) and bulk devices utilizing ME effect. Finally, some open questions and future application directions where the community could head for magnetoelastic materials will be discussed.

Quantum Engineering With Hybrid Magnonic Systems and Materials (Invited Paper)

“…In that respect, towards the goal of getting stronger magnetoelastic coupling with a simultaneously reduced magnetic damping, amorphous B-and C-doping of FeGa and FeCo alloys appears to be a promising direction. 97…”

Magnetoelectricity in vertically aligned nanocomposites: Past, present, and future

“…[1][2][3][4][5] Therefore, ME materials have potential in various electronic devices such as sensors, gyrators, and memory devices. [4][5][6][7][8] The ME coefficient and converse ME coefficient can be defined by Equations 1 and 2, respectively:…”

“…36 To provide a universal and distinct understanding of ME VANs, the BFO-CFO based VAN system is chosen as an example in this article, whereas ME VANs with other compositions and the material selection strategies can be found in some recent reviews. 2,5,7,14,17,29 Pulsed laser deposition (PLD) is a reliable method for VAN growths because it offers highquality epitaxial growth for complex oxides, which facilitate self-assembly. Recently, a unique method called fast switching PLD (FSPLD) has been reported, where multiple single-phase targets can be frequently switched during the deposition process and VANs with different components and volume ratio can be controlled.…”

“…Because of the interaction between magnetic and electric order parameters, the characteristic properties of ME VANs (magnetizations, magnetic anisotropy, polarizations, and ME coefficients) are all tunable by applying H and/or E. 4,7,29 This tunability imparts to ME VANs the potential to be used as active microelectronics. 4,7,24,79 Some ME VANs have been proposed…”

“…8,87,88 Although most of these studies use bulk ME composites, researchers are trying hard to achieve the same functionalities in ME thin films, in order to integrate them with silicon-based microelectronics. 4,7,24,79 Progress has been realized in ME thin films for sensors, 89 tunable inductors, 90 and antennas. 91 Going forward, considering their larger ME coefficients, ME VANs offer more promise than ME thin films.…”