@article{CTT100779655,
  author = {Koshi Takenaka and N. Inoue and Y. Mizuno and Y. Okamoto and N. Katayama and Yuki Sakai and Takumi Nishikubo and Masaki Azuma},
  title = {Extended operating temperature window of giant negative thermal expansion in Sn-doped Ca<sub>2</sub>RuO<sub>4</sub>},
  journal = {APPLIED PHYSICS LETTERS},
  year = 2018,
}