Pressure-induced metallization and 3d-like behavior in TcS2

Dean Sayre,Emily Siska,G Alexander Smith,Nicholas Chang,Changyong Park,Frederic Poineau,Craig P Schwartz,Keith V Lawler,Ashkan Salamat

Chemical Communications（2022）

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摘要

TcS2 undergoes a charge transfer insulator to metal transition above 28 GPa. Laser annealing reveals a kinetically hindered high pressure arsenopyrite phase that is recoverable to ambient. The new phase is similar to the Mn-dichalcogenides rather than the expected Re-dichalcogenides and involves the formation of S–S and Tc–Tc bonds.

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