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��ߣ�J. C. Davis �ڿ��Ȼ�� ʱ�䣺2008-8-28 16:6:25

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��ӵ��ӽ��ܿ��ٽ��¶ȵ��ʶԴ�ڴ�ͳ�ĵ��³��壬��Щ��ֻ��ڽӽ��ʱ�Ż��ֳ��ԡ��ѧ��о��֣��³��д��ڵ��͵ĵ��Ӷ�——��ԣ�ͬʱ��Щ��ӽ�ϵ�Խ��ܣ��ת��¶Ⱦ�Խ�ߡ�

��Щ��Գ��ȣ��ڸ��³��ϣ��ͭ��Σ��ӵ��ӵĽ��ܣ��ֻ��ʵ��䷴——ת��¶ȱ�ø��ͣ��ϣ��Ŀ�ꡣ��³�˺��Ĺ��ʵ��ң�Brookhaven National Laboratory��Ϳ��ζ��ѧ��ѧ��J.C. Seamus Davis˵��“Ҫ��Ϊ�λ��һ��ѵ��顣”

��µ��о��У�Davis��˺Ϳ��ζ��ѧ��ձ��ѧ��ݴ�ѧ��У�Լ��ѧ�Ŀ�ѧ��һ��֤ʵ��ŵ��ӶԽ��ܵ��ӣ��ӷ��“��”��ΪMottness��ҲԽ��ԣ��ò��ϳ��ɥʧ��Ϊ��ı�Ҫ��——��ĵ��Ӷԡ�Davis˵��“��Ѿ��˶��չ��µ�‘��’��”

��µ�ͭ��Ǿ�Ե�壬��ÿ��ͭԭ�Ӷ��“��”��ӣ��Ǵ��һ��״̬——Mott��Ե̬��“��”״̬��޷��ƶ��ͨ��Ѩ��ӣ�hole doping��Ƴ��е�һЩ��ӣ��ôʣ��ĵ��Ӿ��ܹ��ʼ��һ��ԭ��һ��ϣ��һ��̽��Ե��˽��̬��Davis˵��“��ͺñ��ڸ߷�ʱ��ӹ�·��õ�һЩ��ͻȻ�䣬��ͨ�Ϳ�ʼ��С�”

��ѧ��Ѿ��Ϊ��ͭ��е��Ļ��γɳ��Եĵ��Ӽ��໥��á�ͨ��ɨ��΢��“׼��Ӹ��”��Davis��о��ͭ��γ��ĵ��ӽṹ��ϵͳ��Ƴ��Ѩ��Ӽ�Ĵ��໥��ñ�ø�ǿ��ˣ��ӶԵĽ��ʱ��“��”ЧӦ��ø��죬��

Davis��ʾ��“��о��ӱ��ϱ��Ϊ��ϵͳ��ǿ��໥��ͬʱ��ʹϵͳ��ӽ�‘��’̬��ȱ��Ѩ��ѵ��ӽ��ס��޷��ƶ��ͺñȰ��ͣ�Ȼ��һ��ڹ�·�ϡ��ȷʵ�ܶ࣬��ȴ�Ķ�ȥ��ˡ�”

�µ��о�֤��ȷ��ʶ��ڴ˻��ϣ��ѧ�ҾͿ��Կ�ʼ̽��ֽ��취�ˡ�“��Ҫ�ҵ�һЩ��γ�ǿ��ӶԵ��ֲ��ֳ�Mottness�ԵĲ��ϡ�”

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��Ȼ�� Nature��454, 1072-1078 (28 August 2008)��Y. Kohsaka, D.-H. Lee & J. C. Davis��

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