support and encouragement. A part of this study was supported by the Cen- ter for Integrated Nanotechnology Support at Tohoku University and also by Nanotechnology Network Project of the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of the Japanese Government. This study was also supported by a Grant-in-Aid for Scientific Research (KAK- ENHI: 18409056, 20340050) from the Japan Society for the Promotion of Science and Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists (19.4404). 20 References [1] V. V. Nesvizhevsky, et al., Nature 415 (2002) 297. [2] V. V. Nesvizhevsky, et al., Phys. Rev. D 67 (2003) 102002. [3] V. V. Nesvizhevsky, et al., Eur. Phys. J. C 40 (2005) 479. [4] T. Sanuki et al, Nucl. Instr. and Meth. A 600 (2009) 657-660. [5] J. Jakubek et al, Nucl. Instr. and Meth. A 600 (2009) 651-656. [6] S. Tasaki et al, Nucl. Instr. and Meth. A 335 (1995) 501-505. [7] P. C. Andricacos et al, IBM J. Res. Dev. Vol42 Issue 5 (1998) 567-574.