title: Extraordinarily Strong Interlayer Interaction in 2D Layered PtS2.
abstract: Platinum disulfide (PtS2 ), a new member of the group-10 transition-metal dichalcogenides, is studied experimentally and theoretically. The indirect bandgap of PtS2 can be drastically tuned from 1.6 eV (monolayer) to 0.25 eV (bulk counterpart), and the interlayer mechanical coupling is almost isotropic. It can be explained by strongly interlayer interaction from the pz orbital hybridization of S atoms.
authors.affiliation: Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China.|The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China.
authors.forename: Yuda
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Physics, Renmin University of China, Beijing, 100872, P. R. China.|Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Renmin University of China, Beijing, 100872, P. R. China.
authors.forename: Jingsi
authors.initials: J
authors.lastname: Qiao
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798.
authors.forename: Peng
authors.initials: P
authors.lastname: Yu
authors.affiliation: Department of Physics, Renmin University of China, Beijing, 100872, P. R. China.|Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Renmin University of China, Beijing, 100872, P. R. China.
authors.forename: Zhixin
authors.initials: Z
authors.lastname: Hu
authors.affiliation: Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China.|The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China.
authors.forename: Ziyuan
authors.initials: Z
authors.lastname: Lin
authors.affiliation: Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China.|The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China.
authors.forename: Shu Ping
authors.initials: SP
authors.lastname: Lau
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Department of Physics, Renmin University of China, Beijing, 100872, P. R. China.|Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Renmin University of China, Beijing, 100872, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Ji
authors.affiliation: Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China.|The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Chai
keywords: interlayer interactions; low-frequency Raman; platinum disulfide; transition metal dichalcogenides