Liquid Metals Routes towards Making Superconductors

TL;DR

This paper introduces liquid-metal-derived superconductors (LMDS) as a versatile, energy-efficient approach for fabricating superconducting materials under near-ambient conditions, enabling new forms and insights into superconductivity.

Contribution

It proposes a unified liquid-metal paradigm for rapid, flexible synthesis of superconductors and develops a data-driven LM materials genome for predictive design.

Findings

Liquid metals enable quick fabrication of various superconducting forms.

LMDS exhibit intrinsic flexibility and self-healing properties.

Platform for studying superconductivity in amorphous and liquid states.

Abstract

We conceive liquid-metal-derived superconductors (LMDS) as a unified paradigm that enables the quick fabrication of superconducting materials under near-ambient conditions through introducing room-temperature liquid metals (LMs) as dynamic metallic reaction media. In this framework, a single liquid, typically a gallium or bismuth-based alloy, simultaneously serves as solvent, dopant, interfacial mediator, and superconducting host, thereby providing a route that is inherently superior to the high-temperature, high-pressure, and multistep procedures characteristic of current synthesis methods. This paradigm integrates LM-enabled pathways for producing bulk alloys, printed films, two-dimensional confined phases, wires, and nanodroplets, all of which exhibit intrinsic flexibility, self-healing behavior, and compatibility with soft-matter electronics. We further outline a data-driven LM materials genome that unifies composition, structure, ground-state quantities, interaction parameters, and macroscopic properties to accelerate predictive modeling and inverse design of LMDS. Beyond processing advantages, LMs provide an experimental platform for examining superconductivity in amorphous, nanoconfined, and dynamically disordered states and for revisiting the longstanding question of whether true superconductivity can exist in liquid state. This perspective positions LMs as a fertile and energy-efficient route toward reconfigurable and potentially transformative superconducting technologies.