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请问 我已经将CeO2晶胞优化好了 切CeO2(111)面,建立了一个P(4×4)的超胞,固定底下三层原子,表面6层弛豫,截断能450ev,K点2×2×1,开启自旋极化和DFT+U,U=5,
但是输出文件显示*Warning* max. SCF cycles performed but system has not reached the groundstate.
Current total energy, E = -102116.1852104 eV
Current free energy (E-TS) = -102116.1852104 eV
(energies not corrected for finite basis set)
NB est. 0K energy (E-0.5TS) = -102116.1852104 eV
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Warning: electronic minimisation did not converge when finding ground state.
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请问这个问题怎么解决? 我看帖子上有说先降低精度再提高精度优化的(目前正在尝试先跑精度coarse)或者是不是我的初猜磁矩有问题?
附上相关设置
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