Lande g factors in tetragonal halide perovskite: A multiband k.p model
PHYSICAL REVIEW B(2022)
摘要
In the framework of k.p theory, we have calculated the expressions for g factors for electrons and holes taking into account up to 16-band contributions for materials with tetragonal symmetry with D-4h as the point group. Because the recent experimental results for Lande factors do not evidence their anisotropy in the plane perpendicular to the tetragonal crystal c axis, we use these experimental results and the present k.p calculations to determine the Kane energies perpendicular to and along the c axis, as well as the Luttinger parameters kappa(1) and kappa(2) for MAPbI(3) and CsPbBr3.
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