Low-Dimensional Superconductor Structures for High Transition Temperature
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Solution Overview
Problem
Current superconductors have transition temperatures limited to below 30 K, which results in high cooling costs and limits their economic viability for applications such as MRI systems and electronic components.
Innovation Solution
The development of a superconductor device utilizing low-dimensional materials, such as graphene nanoribbons, nanotubes, or helices, with structural modifications and functional groups, which can achieve a critical temperature higher than that of their bulk forms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional bulk superconductors are used, then the superconducting state is achieved, but the transition temperature is limited to below 30 K resulting in high cooling costs
Solution Approach 1:
The patent transitions from bulk three-dimensional superconductors to low-dimensional superconducting structures (two-dimensional materials like graphene nanoribbons, nanotubes, and helices). This dimensional change enables enhanced electron-phonon coupling and suppressed charge density wave instabilities, achieving transition temperatures above 30 K and reducing cooling costs while maintaining superconducting functionality
Solution Approach 2:
The patent modifies structural parameters of the superconducting material by creating low-dimensional configurations with specific geometries (nanoribbons, nanotubes, helices) and functional group attachments. These parameter changes in dimensionality and structure enable the material to achieve higher transition temperatures compared to conventional bulk forms, directly addressing the cooling cost issue
2Temperature
If low-dimensional materials with structural modifications are used, then the critical temperature increases above bulk form, but the device complexity increases
Solution Approach 1:
The patent segments the bulk superconducting material into low-dimensional units (nanoribbons, nanotubes, helices) with controlled dimensions and geometries. This segmentation approach achieves higher critical temperatures through enhanced quantum effects while maintaining manageable structural complexity through standardized low-dimensional configurations
Solution Approach 2:
The patent creates composite low-dimensional superconducting structures by combining different materials and functional groups (e.g., hydrogen-functionalized graphene nanoribbons, metallic clusters on nanotubes). These composites achieve elevated critical temperatures through synergistic effects while the modular nature of low-dimensional structures keeps the overall device complexity manageable
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach potentially increases the transition temperature of superconductors closer to room temperature, reducing cooling costs and enhancing their economic feasibility for various applications.
Implementation Method 1
Superconductors are materials that exhibit zero electrical resistance and expulsion of magnetic flux fields, under conditions such as being cooled below a critical temperature
Implementation Method 2
The superconductivity phenomenon can be characterized by the Meissner effect, which is a complete ejection of magnetic field lines from the interior of the superconductor as the material transitions into the superconducting state
Implementation Method 3
The low-dimensional material can include shape and structural modifications of a low-dimensional material... The low-dimensional material includes a two-dimensional material... suppressing a charge density wave in the graphene nanoribbon
Data Source
AI summary
A superconductor device includes a low-dimensional material with a critical temperature higher than a critical temperature corresponding to a bulk form of the low-dimensional material. The low-dimensional material can include shape and structural modifications of a low-dimensional material. The superconductor device can include various conformational arrangements of the low-dimensional material such as nanoribbons, nanotubes, or helices. The superconductor device can include functional groups, such as hydrogen, attached to the low-dimensional material. The superconductor device can include metallic clusters located in proximity to the low-dimensional material. The superconductor device can include a low-dimensional material which is a monolayer, bilayer or multilayer.