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A possible major step in the quest of room-temperature superconductivity

Two researcher teams have just reported experiments indicating that a hydride of lanthanum compressed to 1.7 to 1.85 million bar has a critical temperature of 250–260 K (-23 – -13°C).

In 1911, while studying the properties of matter at very low temperature, the Dutch physicist Heike Kamerlingh Onnes and his team discovered that the electrical resistance of solid mercury goes to zero below 4.2 K (-269°C). This was the very first observation of...

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