A new study shows how patterned, periodic deformations of a single layer of graphene transforms it into a material with electronic properties previously seen in twisted graphene bilayers.

Figure 1: a new method to create quantum materials

Figure 1 shows that graphene was first isolated and characterized in the early 2000s, researchers have been exploring ways to use this atomically thin nanomaterial because of its unique properties such as high tensile strength and conductivity.

Electronic properties system also hosts additional unexpected and interesting conducting states at the boundary. Through a better understanding of how unique properties occur when single sheets of graphene are subjected to periodic strain, this work has the potential to create quantum devices such as orbital magnets and superconductors in the future. [1]

Now, brand-new research exhibits how patterned, periodic deformations of a single layer of graphene transforms it into a fabric with digital properties beforehand seen in twisted graphene bilayers. This method additionally hosts extra surprising and fascinating conducting states on the boundary.

By way of a greater understanding of how distinctive properties happen when single sheets of graphene are subjected to periodic pressure, this work has the potential to create quantum units comparable to orbital magnets and superconductors sooner or later.

One different to the complicated twisted bilayer methodology is to make use of single layers of graphene which are positioned onto a carefully-patterned substrate, generally known as a “mattress of nails,” which applies an exterior pressure, or pressure, in a periodic vogue.

To higher perceive the quantum geometrical properties of this method, Mele and Phong got down to perceive the speculation underlying how electrons transfer on this single-layered system. [2]

Overall, this study predicts that flat bands, similar to the ones found in twisted bilayer graphene, are created by depositing an atomically thin single layer onto a bed-of-nails substrate that induces a periodic distortion on the graphene sheet.

Phong said, “Although the physics is simple, meaning that you can get the system to behave the way you want in a more controlled way, the phenomenology that you can get out of it is not. It’s very rich, and we’re still uncovering new things as we speak.”

“And because these single-layer systems are simpler to work with, this enhanced theoretical understanding has the potential to aid in future discoveries in the field of edge state physics, including possible new devices such as ultra-small, incredibly fast quantum materials.” [3]

References:

1. https://phys.org/news/2022-05-simpler-approach-quantum-materials.html
2. https://ilmiwap.com/a-simpler-approach-for-creating-quantum-materials/
3. https://www.techexplorist.com/creating-quantum-materials-easy-way/47172/

Cite this article:

Sri Vasagi K (2022), An Easy Way to Create Quantum Materials, Anatechmaz, pp. 251