Flux trapping in superconducting hydrides under high pressure

TL;DR

This paper discusses the measurement of trapped magnetic flux in hydrogen-rich superconductors under high pressure to definitively confirm or refute their superconducting nature.

Contribution

It emphasizes the importance of flux trapping measurements as definitive evidence for high-temperature superconductivity in hydrides.

Findings

Flux trapping measurement can confirm superconductivity.

Absence of flux trapping suggests non-superconducting behavior.

Provides a method to verify claims of high-temperature superconductivity.

Abstract

High-temperature conventional superconductivity in hydrogen-rich materials under high pressure has been reportedly found in twelve different compounds in recent years. However, the experimental evidence on which these claims are based has recently been called into question. Here we discuss the measurement of trapped magnetic flux, that should establish definitively that these materials are indeed high-temperature superconductors. Its absence should confirm claims to the contrary.