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[交流]
MS求助聲子譜,謝謝大家!
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各位前輩好!我最近計算鈦酸鋇不等價摻雜(PS:超胞2×2×2 無禁帶寬度),采用的泛函是GGA+PBE,贗勢為norm-conserving,linear-response法 計算聲子譜出現(xiàn)一些問題,如下圖,不知道什么原因,計算的聲子譜為一條為0的直線。希望各位前輩能指點一二,另外我還計算了一下紅外和拉曼等性質(zhì),也是出現(xiàn)了錯誤,錯誤顯示如下: 鏈接: https://pan.baidu.com/s/1EQHsZHlfM8dzBJmzqTqmjA?pwd=rutp 提取碼: rutp 復(fù)制這段內(nèi)容后打開百度網(wǎng)盤手機App,操作更方便哦 WARNING: Ground state wavefunctions and density data in check file marked as unconverged. because some parameters changed on continuation Writing model to BaTiO3_Efield.check ??????????????????????????????????????????????????????????????????????????????? WARNING: Variational DFPT solver is not implemented for metallic (partial occupancy) systems but PHONON_DFPT_METHOD == "ALLBANDS". Parameter PHONON_DFPT_METHOD changed to "DM" ??????????????????????????????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????????? INFORMATION: Calculation of Born effective charges and IR intensities is not meaningful for metallic (partial occupancy) systems. Parameter CALCULATE_BORN_CHARGES changed to .FALSE. ??????????????????????????????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????????? INFORMATION: Calculation of LO/TO splitting is not meaningful for metallic (partial occupancy) systems. Parameter PHONON_CALC_LO_TO_SPLITTING changed to .FALSE. ??????????????????????????????????????????????????????????????????????????????? Error: secondd_polarizability called with partial occupancy (metallic) system Current trace stack: secondd_polarisability phonon_calculate_dynamical_dfpt phonon_calculate castep Error: secondd_polarizability called with partial occupancy (metallic) system Error: secondd_polarizability called with partial occupancy (metallic) system |
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