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minmin_0082003

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souledge

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uuv2010(½ð±Ò+1): ¶àлÌáʾ 2011-11-28 10:56:24
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1Â¥: Originally posted by minmin_0082003 at 2011-11-27 18:17:08:
²»ÊǵçºÉÃܶȣ¬±ÈÈçMulliken charge,¿ÉÒÔËã³öÏàÓ¦Ô­×ÓÉÏËù´øµÄµçºÉÊý
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Lowdin Population
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2Â¥2011-11-28 08:39:38
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meng303

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2Â¥: Originally posted by souledge at 2011-11-28 08:39:38:
projwfc.x
Lowdin Population

projwfc.x Êä³öÎļþÖÐÿ¸öÔ­×Ó¶¼ÓÐAtom #  47: total charge = £¬µçºÉÊýÔÚÕâÀïÊǵç×ÓµÄÊýÄ¿Âð£¬ÄܽâÊÍÒ»ÏÂLowdin PopulationÂð£¿

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3Â¥2011-11-30 15:04:59
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fzx2008(½ð±Ò+1): ¶àлÌáʾ 2011-11-30 19:35:30
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3Â¥: Originally posted by meng303 at 2011-11-30 15:04:59:
projwfc.x Êä³öÎļþÖÐÿ¸öÔ­×Ó¶¼ÓÐAtom #  47: total charge = £¬µçºÉÊýÔÚÕâÀïÊǵç×ÓµÄÊýÄ¿Âð£¬ÄܽâÊÍÒ»ÏÂLowdin PopulationÂð£¿

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P.O. Löwdin. Phys. Rev., 97, 1474-1489 (1955)
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4Â¥2011-11-30 15:11:12
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fyh987

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
1Â¥: Originally posted by minmin_0082003 at 2011-11-27 18:17:08:
²»ÊǵçºÉÃܶȣ¬±ÈÈçMulliken charge,¿ÉÒÔËã³öÏàÓ¦Ô­×ÓÉÏËù´øµÄµçºÉÊý
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Â¥Ö÷Äܲ»ÄܰÑPWSCFÈí¼þ¸ø´«Ò»Ï£¬ÄãÊÇÔõôÏÂÔØµÄ£¬ÔÚMSÀïÃæ¿ÉÒÔ¼ÆËãmulliken charge Êý°¡
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5Â¥2011-11-30 17:04:14
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souledge

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ºØÒÇ(½ð±Ò+1): ¶àлÄãµÄÈÈÐİïÖú 2011-11-30 20:44:42
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5Â¥: Originally posted by fyh987 at 2011-11-30 17:04:14:
Â¥Ö÷Äܲ»ÄܰÑPWSCFÈí¼þ¸ø´«Ò»Ï£¬ÄãÊÇÔõôÏÂÔØµÄ£¬ÔÚMSÀïÃæ¿ÉÒÔ¼ÆËãmulliken charge Êý°¡

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A disadvantage of the use of a plane wave (PW) basis set is that, due to the delocalized nature of the basis states, it provides no information regarding the localization of the electrons in the system. In contrast, a Linear Combination of Atomic Orbitals (LCAO) basis set provides a natural way of specifying quantities such as atomic charge, bond population, charge transfer etc.

Population analysis in CASTEP is performed using a projection of the PW states onto a localized basis using a technique described by Sanchez-Portal et al. (1995). Population analysis of the resulting projected states is then performed using the Mulliken formalism (Mulliken, 1955). This technique is widely used in the analysis of electronic structure calculations performed with LCAO basis sets.

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