Optical spectroscopy of bulk single crystals of VOx and TiOx

Taishi Yoshida, Kaoru Akimoto, Asuka Yanagida, Suguru Yano, Haruka Matsumoto, Takumi Iwata, Ryota Yoshimura, Takuro Katsufuji

Research output: Contribution to journalArticlepeer-review


We successfully grew bulk single crystals of VOx and TiOx with a sodium-chloride structure by the floating-zone method, and we performed optical reflectivity measurement and pump-probe spectroscopy to clarify the electronic structure of these series of compounds and their x dependence. We found that optical spectra can be discussed on the basis of the Mott-Hubbard model, although a disorder arising from the deficiencies of Vi or Ti and O plays an important role in the electronic structure as well as their x dependence.

Original languageEnglish
Article number014412
JournalPhysical Review Materials
Issue number1
Publication statusPublished - 2023 Jan

ASJC Scopus subject areas

  • General Materials Science
  • Physics and Astronomy (miscellaneous)


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