电子
钙钛矿(结构)
有效质量(弹簧-质量系统)
凝聚态物理
自旋(空气动力学)
物理
哈密顿量(控制论)
立方晶系
材料科学
原子物理学
化学
结晶学
核物理学
量子力学
数学优化
热力学
数学
作者
David Ompong,Godfred Inkoom,Jai Singh
摘要
Analytical expressions for the effective mass of heavy, light, and spin split-off electrons are obtained by diagonalizing the k⋅p Hamiltonian for cubic perovskite crystal structures and used to calculate these in nine perovskite materials. An expression for the effective hole g-factor is also derived and calculated in these perovskites. The calculated effective mass of heavy electrons ranges from 1.619 m0 to 0.201 m0, of light electrons from 0.357 m0 to 0.146 m0, and of spin split-off electrons from 0.584 m0 to 0.169 m0. It is found that Cl- and Pb-based perovskite materials have larger heavy, light, and spin split-off electron effective masses. It is also found that the effective g-factor increases with the atomic size, from Cl to I, for the series CsSnX3(X=Cl,Br,I).
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