Coulomb blockade devices of Co dot arrays on tungsten-nanowire templates fabricated by using only a thin film technique

Lee, Yun-Hi; Kim, Dong-Ho; Shin, Kyung-Sik; Choi, Chang-Hoon; Jang, Yoon-Taek; Ju, Byeong-Kwon
May 2003
Applied Physics Letters;5/19/2003, Vol. 82 Issue 20, p3535
Academic Journal
A simple fabrication of gate-controlled nanodevices made of the Co nanodots on tungsten (W)-nanowire templates by using conventional photolithography and a thin film technique is reported. The combined multiple grain nanobridge allows the observation of the Coulomb gap up to a temperature as high as 200 K and shows nonlinear current-voltage characteristics up to 250 K. The combination of Co dots with straight W-nanowire templates opens possibilities of reproducible blockade devices.


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