supported by the National Research Foundation, Singapore; A * Star SERC grant( No. 0421010078) ; the National Natural Science Foundation of China( No. 60407014 and 60527005 ) ; the National Grant Foundation Project( No. GO01 CB3095 ).
We report a new type of planar metamaterial consisting of a pair of homogeneous parallel plates separated by a thin medium. Strong magnetic response and negative effective permeability are observed in the materials at...