[17p-D61-1~14] 6.3 Oxide electronics

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[17p-D61-14] Determination of the local structure of W doped VO₂ by photoelectron holography

〇Yuta Okishi¹, Yusuke Hashimoto², Tomohiro Matsushita², Zexu Sun², Shogo Yamada², Yuya Yamada², Momoko Yoshida², Yuji Muraoka¹, Takanori Wakita¹, Syouta Nakamura¹, Syouya Inagaki¹, Takayoshi Yokoya¹, Kohei Yamagami³ (1.Okayama Univ., 2.NAIST, 3.JASRI)

Keywords:

photoelectron holography,vanadium dioxide

VO2 is a transition metal oxide with a rutile structure and exhibits a metal-insulator phase transition around 67°C. It is expected to be used in practical devices. It is expected to be applied to practical devices, and it is important to lower the transition temperature. Electron doping is one of the methods to control the transition temperature, and tungsten (W) is known as a dopant that can efficiently change the transition temperature of VO2. In our study, we used photoelectron holography to investigate the effect of W atoms on the transition temperature in terms of local structure.