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J值符号对计算过程的影响 #31

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HiHfJj opened this issue Apr 15, 2024 · 1 comment
Open

J值符号对计算过程的影响 #31

HiHfJj opened this issue Apr 15, 2024 · 1 comment

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@HiHfJj
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HiHfJj commented Apr 15, 2024

刘老师您好,请问通过映射不同自旋构型能量求解出的J值符号和基态磁构型不一致(如:次近邻为铁磁态,但J值却为正)时,输入文件中应该如何设置,或需注意什么?
因为我在计算时遇到这个问题,按照计算结果填写时,一直算不出结果

@golddoushi
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这个直接按照J的计算结果填写就可以了,一般不会算不出结果。您可以参考以下CrI3的输入文件,里面考虑了最近邻(J<0铁磁类型),次近邻(J>0反铁磁类型),三次近邻(J<0铁磁类型)。一直不出结果有可能是温度设置过低,或者超胞尺寸过大,或者超胞数目为奇数等等问题。或者您可以把输入文件贴在这看看问题在哪

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