Layer-controlled nonlinear terahertz valleytronics in two-dimensional semimetal and semiconductor PtSe₂

• Main Authors: Hemmat, Minoosh, Ayari, Sabrine, Micica, Martin, Vergnet, Hadrien, Guo, Shasha, Arfaoui, Mehdi, Yu, Xuechao, Vala, Daniel, Wright, Adrien, Postava, Kamil, Mangeney, Juliette, Carosella, Francesca, Jaziri, Sihem, Wang, Qi Jie, Liu, Zheng, Tignon, Jerome, Ferreira, Robson, Baudin, Emmanuel, Dhillon, Sukhdeep
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Materials; Dirac Semimetal; Optical Nonlinearities
• Online Access: https://hdl.handle.net/10356/171573
• Institution: Nanyang Technological University

Platinum diselenide ((Formula presented.)) is a promising two-dimensional (2D) material for the terahertz (THz) range as, unlike other transition metal dichalcogenides (TMDs), its bandgap can be uniquely tuned from a semiconductor in the near-infrared to a semimetal with the number of atomic layers....