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bingmou(½ð±Ò+1): ¸ÐлÌáʾ 2011-05-11 20:13:06
currentyoungman(½ð±Ò+2): 2011-08-03 10:06:00
currentyoungman(½ð±Ò+1):лл²ÎÓë
bingmou(½ð±Ò+1): ¸ÐлÌáʾ 2011-05-11 20:13:06
currentyoungman(½ð±Ò+2): 2011-08-03 10:06:00
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2Â¥2011-05-10 22:33:37
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лл¥ÉϵÄÐֵܣ¬ÎÒÖ¸µÄÊÇÒ»¸öδÅä¶Ôµç×ÓµÄ×ÔÐý´Å¾Ø£¬²Î¿¼ÎÄÏ×Ïà¹ØÄÚÈݸ½Ï£º the film thickness increases. In order to understand the observed magnetic moment of the films, it is essential to have an insight into the possible electronic configurations of Cu ions in the material. Cu atoms in unionized state have an outer cell electronic configuration of 3d104s1 and, hence, Cu+ and Cu2+ ions are expected to posses 3d10 and 3d9 configurations, respectively. In 3d10 configuration, all the d electrons are paired and, hence Cu+ ions does not posses any magnetic moment. On the other hand, in the case of Cu2+ ions with d9 configuration, one unpaired electron is available. This will give rise to a spin angular momentum of 1/2 which can result in a net magnetic moment of M~1.73 uB ÕâÀïM=guB¸ùºÅS³ËÒÔ(S+1); ÆäÖÐg=2, S=1/2. |
3Â¥2011-05-11 08:36:25
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