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skydark

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[ÇóÖú] ¿ÕégȺbilbao crystallographic server¾WÕ¾µÄÀ§”_

bilbao crystallographic server ?W????????
??????????????????g??????  ?? E C2x C2y C2z I ?????
???????¨¿??????????g???? ?o???Bi2Se3 space group no 166 ??? ???? space group no 64
?????¨©I????????

????§Ú????????????  ??bilbao crystallographic server?e??, ????¨©I???e?  ???????????e????

Bi2Se3 ?¨©I :   http://journals.aps.org/prb/pdf/10.1103/PhysRevB.82.045122
????   ?¨©I :     http://journals.aps.org/prb/pdf/10.1103/PhysRevB.90.115439

bilbao crystallographic server??W?:
http://www.cryst.ehu.es/
??bilbao crystallographic server?????
?c?x Representation Theory Applications??????
REPRES        Space Groups Representations
??? ???x??space group?????Y?^??  64  ??  166, ??? next
????x GM (gamma point) ,  ??????????????¡ã? continue
????????? continue
????????F????g??????

?????¨©I????  ???l?Fbilbao crystallographic server??????¨©I???????????
????Bi2Se3??generators ????? E , R3 , R2 , I
??bilbao crystallographic server?@?F????4??generators ?? ??2???@????? R3 (??????3?? E, R2 ,I ???]???})

?????????4??generators ????????????}  
???¨©I???f?? ?@y?S???D180?????? ???????????translation?????.........

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skydark

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
4Â¥: Originally posted by iamikaruk at 2015-02-21 08:14:00
Äã¸øµÄÎÄÕÂÎÒûÓÐ×Ðϸ¿´£¬²»¹ýËÆºõËûÃÇÓõÄÊÇrhombohedral¡£...

¼ÙÔOÊÇÒÔrhombohedralµÄlattice vector×öžé»ùµ×µÄÔ’
ÄÇËÄ‚€generators¾Øê‡‘ªÔ“ÊÇß@˜Ó:

   E              R3             R2              I
1  0  0      0  1  0       0  -1  0       -1  0  0
0  1  0      0  0  1       -1  0  0        0 -1  0
0  0  1      1  0  0        0  0 -1        0  0 -1

µ«¾Wí“ï@ʾµÄÊÇß@˜Ó:

   1              2               3                4
1  0  0      0 -1  0        0  1  0       -1  0  0
0  1  0      1 -1  0        1  0  0        0 -1  0
0  0  1      0  0  1        0  0 -1        0  0 -1

߀ÊÇŒ¦²»ÉÏ..........
5Â¥2015-02-21 14:25:46
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²é¿´È«²¿ 8 ¸ö»Ø´ð

iamikaruk

ľ³æ (ÖøÃûдÊÖ)

ÒòΪÊÇhexagonal»òrhombohedralµÄ²»Í¬°É£¿
[img]http://osu.ppy.sh/stat2/iamikaruk-0.png[/img]
2Â¥2015-02-21 02:54:43
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skydark

ľ³æ (ÕýʽдÊÖ)

???????:
2?: Originally posted by iamikaruk at 2015-02-21 02:54:43
?????hexagonal??rhombohedral???????

?????????_????????
hexagonal??Bi2Se3??bravais lattice,  rhombohedral ??Bi2Se3??primitive unit cell
????_????????
bilbao crystallographic server?W???o?????D??????????hexagonal??lattice vector?????
3Â¥2015-02-21 03:56:23
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iamikaruk

ľ³æ (ÖøÃûдÊÖ)

???????:
3?: Originally posted by skydark at 2015-02-21 03:56:23
?????????_????????
hexagonal??Bi2Se3??bravais lattice,  rhombohedral ??Bi2Se3??primitive unit cell
????_????????
bilbao crystallographic server?W???o?????D??????????hexagonal??latti ...

?????????????????????????????????????rhombohedral??
[img]http://osu.ppy.sh/stat2/iamikaruk-0.png[/img]
4Â¥2015-02-21 08:14:00
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