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While it is known that the amplification of the superconducting criticaltemperature Tc is possible in a system of multiple electronic components incomparison with a single component system, many different road maps for roomtemperature superconductivity have been proposed for a variety ofmulticomponent scenarios. Here we focus on the scenario where the firstelectronic component is assumed to have a vanishing Fermi velocitycorresponding to a case of the intermediate polaronic regime, and the secondelectronic component is in the weak coupling regime with standard high Fermivelocity using a mean field theory for multiband superconductivity. Thisroadmap is motivated by compelling experimental evidence for one component inthe proximity of a Lifshitz transition in cuprates, diborides and iron basedsuperconductors. By keeping a constant and small exchange interaction betweenthe two electron fluids, we search for the optimum coupling strength in theelectronic polaronic component which gives the largest amplification of thesuperconducting critical temperature in comparison with the case of a singleelectronic component.

condensed matter

The road map toward room temperature superconductivity: manipulating  different pairing channels in systems composed of multiple electronic  components