Epitaxial fabrication of two-dimensional TiTe<sub>2</sub> monolayer on Au(111) substrate with Te as buffer layer

Epitaxial fabrication of two-dimensional TiTe₂ monolayer on Au(111) substrate with Te as buffer layer

Song Zhipeng¹, Lei Bao¹, Cao Yun¹, Qi Jing¹, Peng Hao¹, Wang Qin¹, Huang Li¹, Lu Hongliang^{1, ‡}, Lin Xiao^{1, 2}, Wang Ye-Liang^{1, 3}, Du Shixuan^{1, 2}, Gao Hong-Jun^{1, 2}

(a) Top and side views of the relaxed atomic model of the TiTe₂/Te/Au(111) structure showing a ( 3 × 5 ) superstructure (red rectangle). (b) Simulated STM image of the configuration in (a), showing both ( 3 × 5 ) (red rectangle) and ( 3 × 7 ) (black parallelogram) superstructures. The atomic model is overlapped on the top for comparison. (c) High resolution STM image (−50 mV, 40 pA ) showing two superstructures.