Characteristics of coherent transverse optical phonon in CuI thin films on Au nano-films Shota Isshiki, Yuuki Nagata, Goro Oohata, Akira Kawakami, Shingo Saito and Kohji Mizoguchi Eur. Phys. J. B, 86 4 (2013) 172 Published online: 22 April 2013 DOI: 10.1140/epjb/e2013-30615-5