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. 2021 Mar 4;12(9):2464–2470. doi: 10.1021/acs.jpclett.0c03841

Table 1. SiP2 Monolayer: Deformation Potential Constant (EDP), In-Plane Stiffness (C), Effective Mass (m*), Carrier Mobility (μ), and Relaxation Time (τ) along the a and b Directions at 300 K.

carrier type EDP (eV) C (J m–2) m* (m0) μ (cm2 V–1 s–1) τ (ps)
electron (a) 12.51 101.28 0.13 212.36 0.02
hole (a) 0.31 101.28 0.78 3.20 × 104 15.60
electron (b) 0.23 76.99 1.90 3.27 × 104 38.80
hole (b) 0.58 76.99 1.03 5.27 × 103 3.39