Dear Developers,
Will the Liechtenstein formula be implemented? This formula is widely used for calculating exchange coupling parameters. Here is the reference:
A.I. Liechtenstein, M.I. Katsnelson, V.A. Gubanov, "Exchange interactions and spin-wave stiffness in ferromagnetic metals," J. Phys. F: Met. Phys., vol. 14, no. 7, 1984, pp. L125, http://dx.doi.org/10.1088/0305-4608/14/7/007.
Best regards,
Qilin