Suk Hyun Sung, Nishkarsh Agarwal, Ismail El Baggari, Patrick Kezer, Yin Min Goh, Noah Schnitzer, Jeremy M Shen, Tony Chiang, Yu Liu, Wenjian Lu, Yuping Sun, Lena F Kourkoutis, John T Heron, Kai Sun, Robert Hovden
Charge density waves are emergent quantum states that spontaneously reduce crystal symmetry, drive metal-insulator transitions, and precede superconductivity. In low-dimensions, distinct quantum states arise, however, thermal fluctuations and external disorder destroy long-range order. Here we stabilize ordered two-dimensional (2D) charge density waves through endotaxial synthesis of confined monolayers of 1T-TaS2 . Specifically, an ordered incommensurate charge density wave (oIC-CDW) is realized in 2D with dramatically enhanced amplitude and resistivity...
February 15, 2024: Nature Communications