Shibata, G., Takahashi, Y., Okawa, M., Yasui, A., Takagi, Y., Kawamura, Y., Miyakawa, N., Kase, N., Hamada, N., Saitoh, T. (2025). Hard x-ray photoemission study of bulk single-crystalline InGaZnO4. Applied Physics Letters. https://doi.org/10.1063/5.0271655