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As I have mentioned in my previous report, T^1/2 behavior can be commonly found in granular systems with energy barrier distributions, where thermal activation dominates the transport.

[ Last edited by xianke5199 on 2011-3-2 at 16:59 ]
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Originally posted by break100 at 2011-03-02 19:31:29:
×ÖÃæÒâ˼¾Í²»ËµÁË£¬ÄãµÄÎÊÌâÆäʵÓÐÎïÀí¸ÅÄî²»ÇåÎúµÄµØ·½¡£ËùÓиúζȳÉÖ¸Êý¹ØÏµµÄµçÊäÔË»úÖÆ¶¼ÊÇÈȼ¤»î£¬Ò²¾ÍÊÇÈÈÄÜ×÷ÎªÔØÁ÷×ӵ碌îÄÜ¡£Ö»²»¹ýÊÇTµÄ´Î·½Êý²»Í¬£¬ÓÐ-1£¬-1/2,-1/4µÈµÈ¡£ÆäÖÐ-1×îÈÝÒ×Àí½â£¬Ò»°ã¾ÍÊÇ ...

²»ºÃÒâ˼£¬ÔÙÇë½ÌÏ£¬ÈçºÎÀí½âÏÂÃæµÄÒ»¾ä»°      The linear plot in
the main panel indicates that the dominant conduction mechanism is one-dimensional variable range hopping (VRH) rather than thermal activation-type over this temperature range (115¨C300 K).    J. Phys.: Condens. Matter 18 (2006) 3745¨C3752

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break100

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xianke5199(½ð±Ò+2): 2011-03-02 16:57:17
Phys. Rev. Lett. 31, 44¨C47 (1973)
Hopping Conductivity in Granular Metals
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xianke5199(½ð±Ò+4): 2011-03-02 20:11:50
lpszk(½ð±Ò+2): лл²ÎÓë 2011-03-04 10:09:00
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