Focusing of particles scattered by a surface

Superconductivity in Topological Semimetal θ-TaN at High Pressure*

“…The superconducting transition disappears upon releasing pressure, indicating that the superconducting transition is reversible. According to the previous report, superconductivity was observed in the 𝛿 phase (cubic structure) for TaN at ambient pressure with a 𝑇 c around 4.2 K, [24] but there has been no report on the 𝜃-TaN so far. This is the first observation of superconductivity in 𝜃-TaN to our knowledge.…”