Volume 134, Number 2, April 2021
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||25 May 2021|
Towards room-temperature superconductivity
1 ENS Paris- Saclay/LuMIn - 4 avenue des Sciences, F-91190 Gif- sur-Yvette, France
2 Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel - F-13013 Marseille, France
3 American University of Technology, AUT Halat - Highway, Lebanon
4 Ain- Shams University - Cairo, Egypt
Received: 10 January 2021
Accepted: 16 April 2021
By taking advantage of a stability criterion established recently, the critical temperature Tc is reckoned with help of the microscopic parameters, characterising the normal and superconducting electrons, namely the independent-electron band structure and a repulsive two-electron force. The emphasis is laid on the sharp Tc dependence upon electron concentration and inter-electron coupling, which might offer a practical route toward higher Tc values and help to understand why high-Tc compounds exhibit such remarkable properties.
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