@article{CTT100703759,
  author = {Masaki Hada and Wataru Oba and Masashi Kuwahara and Ikufumi Katayama and Toshiharu Saiki and Jun Takeda and Kazutaka Nakamura},
  title = {Ultrafast time-resolved electron diffraction revealing the nonthermal dynamics of near-UV photoexcitation-induced amorphization in Ge2Sb2Te5},
  journal = {Scientific Reports},
  year = 2015,
}

@article{CTT100633025,
  author = {Hiroshi Takahashi and Hiroaki Koguchi and Toshiyuki Atou and HIDEO HOSONO and Ikufumi Katayama and Jun Takeda and Masahiro Kitajima and KAZUTAKA NAKAMURA},
  title = {Coherent optical phonons in the iron oxypnictide SmFeAsO1-x Fx (x=0.075)},
  journal = {J. Phys. Soc. Jpn},
  year = 2011,
}