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Condens. Matter 2017, 2(3), 24; doi:10.3390/condmat2030024

The Road Map toward Room-Temperature Superconductivity: Manipulating Different Pairing Channels in Systems Composed of Multiple Electronic Components

1
Max-Planck-Institute for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart, Germany
2
Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
3
Rome International Center for Materials Science Superstripes (RICMASS), Via dei Sabelli 119A, 00185 Rome, Italy
4
Institute of Crystallography, Consiglio Nazionale delle Ricerche CNR, Via Salaria Km 29.300, 00015 Monterotondo, Italy
5
National Research Nuclear University, MEPhI (Moscow Engineering Physics Institute), Kashirskoye sh. 31, 115409 Moscow, Russia
6
School of Pharmacy, Physics Unit, University of Camerino, 62032 Camerino, Italy
*
Author to whom correspondence should be addressed.
Received: 10 May 2017 / Revised: 29 June 2017 / Accepted: 4 July 2017 / Published: 7 July 2017
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Abstract

While it is known that the amplification of the superconducting critical temperature TC is possible in a system of multiple electronic components in comparison with a single component system, many different road maps for room temperature superconductivity have been proposed for a variety of multicomponent scenarios. Here we focus on the scenario where the first electronic component is assumed to have a vanishing Fermi velocity corresponding to a case of the intermediate polaronic regime, and the second electronic component is in the weak coupling regime with standard high Fermi velocity using a mean field theory for multiband superconductivity. This roadmap is motivated by compelling experimental evidence for one component in the proximity of a Lifshitz transition in cuprates, diborides, and iron based superconductors. By keeping a constant and small exchange interaction between the two electron fluids, we search for the optimum coupling strength in the electronic polaronic component which gives the largest amplification of the superconducting critical temperature in comparison with the case of a single electronic component. View Full-Text
Keywords: multigap superconductivity; multiple electronic components; room temperature superconductivity; superconductivity near a Lifshitz transition; band-edge; shape resonance multigap superconductivity; multiple electronic components; room temperature superconductivity; superconductivity near a Lifshitz transition; band-edge; shape resonance
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Bussmann-Holder, A.; Köhler, J.; Simon, A.; Whangbo, M.-H.; Bianconi, A.; Perali, A. The Road Map toward Room-Temperature Superconductivity: Manipulating Different Pairing Channels in Systems Composed of Multiple Electronic Components. Condens. Matter 2017, 2, 24.

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