NanoMagnO · Nano-Magnetic Oscillators
Horizon 2020 — Marie Skłodowska-Curie Actions
- Duration
- 2020-04-01 → 2022-03-31
- EU contribution
- €160,932
- Participants
- 1
- Scheme
- MSCA-IF-EF-ST
Lines connect the coordinator with its partners.
Results in brief
Nano-Magnetic Oscillators
Recently, it has been discovered that when two graphene monolayers are stacked and twisted at 1.1o, also known as a “magic angle”, superconductivity arises due to the long-range Moiré pattern that appears at these stacking angles. Here, interactions between electrons and their band topology give rise to novel quantum states of matter, such as strongly-correlated insulators and orbital ferromagnets, when tuning the carrier concentration with an external gate. Much of the underlying physics behind such states is yet to be understood, and the strong interactions present in these devices could be exploited to observe even more novel phenomena, making this van der Waals material an ideal platform to study and engineer new physics. Additionally, recent reports have shown that in the naturally occurring Bernal (AB stacking) bilayer graphene, when applying an in-plane magnetic field superconductivity appears at carrier concentrations where no superconductivity would otherwise be present. This is in stark contrast to conventional superconductor theory, according to which magnetic fields destabilize and destroy superconductive states. Thus, both twisted and Bernal bilayer graphene are an ideal platform to study strong correlations, superconductivity, and how these quantum states are affected by strain.
Data: CORDIS, © European Union
Project objective
The isolation of graphene sheets ushered the age of 2D materials as the poster children of condensed matter physics. Until a few years ago, 2D magnetism was thought to be impossible to observe experimentally, as any amount of thermal fluctuations is enough to disturb the magnetic order. Recently, the existence of 2D magnets have been proved and these materials have garnered a great amount of interest, both due to their novel physics and to the possibility of downscaling magnetic devices, enabling future beyond CMOS technology. However, the physics underlying 2D magnetism are not fully understood. In this project, we aim to study how the magnetism of 2D monolayers of CrI3 and CrBr3 is modified by applying a mechanical strain, which tunes their intralayer magnetic exchange and ultimately their magnetic order. CrI3 and CrBr3 bilayers will also be used to study the dependence of the magnetic coupling between different layers in van der Waals heterostructures, describing the origin of their interlayer magnetic orderings. Using the same materials, we will fabricate nanomechanical resonators which will be used to study the backaction of magnetic field on oscillating 2D magnets. Ultimately, this project will shed light on how magnetism and mechanics interplay in 2D materials.
Original text from CORDIS.
Participants
- FUNDACIO INSTITUT DE CIENCIES FOTONIQUES · CastelldefelsCoordinatorSpain
Links
Data: CORDIS, © European Union