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Prediction of ambient pressure conventional superconductivity above 80 K in hydride compounds

Physics

Prediction of ambient pressure conventional superconductivity above 80 K in hydride compounds

A. Sanna, T. F. T. Cerqueira, et al.

Exciting research by Antonio Sanna, Tiago F. T. Cerqueira, Yue-Wen Fang, Ion Errea, Alfred Ludwig, and Miguel A. L. Marques explores hydride compounds, Mg₂XH₈, that may achieve ambient-pressure superconductivity above 80 K! With predictions from machine-learning and potential breakthroughs in high-temperature superconductivity, this research opens new frontiers in materials science.

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Playback language: English
Abstract
This paper predicts a family of hydride compounds, Mg₂XH₈ (X = Rh, Ir, Pd, or Pt), exhibiting ambient-pressure superconductivity above 80 K. These compounds were identified through a machine-learning accelerated high-throughput search of over a million compounds. Predicted superconducting transition temperatures range from 45–80 K, potentially exceeding 100 K with electron doping in the Pt compound. This suggests high-temperature superconductivity in hydrides is achievable at ambient pressure, albeit rare.
Publisher
npj Computational Materials
Published On
Feb 28, 2024
Authors
Antonio Sanna, Tiago F. T. Cerqueira, Yue-Wen Fang, Ion Errea, Alfred Ludwig, Miguel A. L. Marques
Tags
hydride compounds
superconductivity
ambient pressure
machine learning
high-throughput search
electron doping
transition temperature

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