Shriram Shivaraman, Robert A. Barton, Xun Yu, Jonathan Alden, Lihong Herman, MVS Chandrasekhar, Jiwoong Park, Paul L. McEuen, Jeevak M. Parpia, Harold G. Craighead, Michael G. SpencerNano Letters 9, 3100-3105 (2009) PDF Supplemental Materials