Authors: M Sprinkle; D Siegel; Y Hu; J Hicks; A Tejeda; A Taleb-Ibrahimi; P Le Fèvre; F Bertran; S Vizzini; H Enriquez; S Chiang; P Soukiassian; C Berger; W A de Heer; A Lanzara; E H Conrad Journal: Phys Rev Lett Date: 2009-11-24 Impact factor: 9.161