Graphene Stacked at 1.1 degrees Superconducts

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Thread starter .Scott
Start date Jan 2, 2019
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Degrees Graphene

In summary, graphene is a highly conductive material made of a single layer of carbon atoms. When two sheets of graphene are stacked at a specific angle of 1.1 degrees, they exhibit superconductivity, allowing for the flow of electricity with zero resistance. This is due to a unique moiré pattern created by the stacking angle, leading to potential applications in electronics, computing, medical imaging, and renewable energy. Unlike traditional superconductors, graphene stacked at 1.1 degrees does not require extremely cold temperatures, but challenges remain in controlling the stacking angle and fully harnessing its potential for practical use.

Jan 2, 2019

.Scott

Science Advisor

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It's an interesting article just published in Nature:
https://www.nature.com/articles/d41586-018-07848-2

Physics news on Phys.org

Jan 2, 2019

fluidistic

Gold Member

Well that's "old news": March 2018, so no surprise here.

https://www.nature.com/articles/d41586-018-02773-w

Jan 3, 2019

.Scott

Science Advisor

Homework Helper

Almost the same article. Some additional details - and now the results are confirmed.
I would have expected them to mark this as a story update.

Related to Graphene Stacked at 1.1 degrees Superconducts

1. What is graphene stacked at 1.1 degrees superconducts?

Graphene stacked at 1.1 degrees refers to a specific arrangement of layers of graphene, a thin sheet of carbon atoms, at a specific angle of 1.1 degrees. This arrangement has been found to exhibit superconductivity, meaning it can conduct electricity with zero resistance at low temperatures.

2. How does graphene stacked at 1.1 degrees exhibit superconductivity?

The specific arrangement of graphene layers at 1.1 degrees creates a moiré pattern, which leads to the formation of a flat band in the electronic structure. This flat band allows for the pairing of electrons, leading to superconductivity at low temperatures.

3. What are the potential applications of graphene stacked at 1.1 degrees superconducts?

The discovery of superconductivity in graphene stacked at 1.1 degrees has potential applications in various fields, including quantum computing, high-speed electronics, and energy storage. It could also lead to the development of more efficient and powerful electronic devices.

4. How does the superconductivity in graphene stacked at 1.1 degrees compare to other superconductors?

The superconductivity in graphene stacked at 1.1 degrees is unique because it occurs at relatively high temperatures (around -50 degrees Celsius) compared to other superconductors. It also has the potential for tunability, meaning the superconducting state can be switched on and off by adjusting the angle between the graphene layers.

5. What are the challenges in utilizing graphene stacked at 1.1 degrees for practical applications?

One of the main challenges is maintaining the precise angle of 1.1 degrees between the graphene layers, as any deviation can significantly affect the superconducting properties. Additionally, the production of large, high-quality graphene samples with this specific arrangement is still a technical challenge that needs to be overcome for practical applications.