2026

　・Switching the Ordering Pattern of Bi2Rh4 Breathing by Isovalent Chalcogen Substitution in Bi2Rh3X2 (X = Se, S) 

C. Koyama, T. Ohashi, K. Sugimoto, K. Kojima, R. Ito, Y. Nakamura, R. Asahi, R. Eguchi, Y. Kubozono, and N. Katayama* 

Accepted for publication in Chemistry of Materials.

　・Crystallographic origin of pressure-induced bond order in the frustrated spinel CuIr2S4

M. Emi, T. Ohashi, K. Kojima, K. Sugimoto, K. Matsubayashi, K. Oka, H. Kadobayashi, S. Kawaguchi-Imada, D. Ito, T. Kubo,  K. Hashimoto, S. Kitani, H. Kawaji, H. S. Suzuki, S. Nagata, and N. Katayama*

Communications Chemistry 9 (2026) 316.

　・Real-space determination of orbital states driving successive phase transitions in FeV2⁢O4

C. Koyama*, Y. Nomura, N. Katayama, S. Kitou*, Y. Nii, T. Manjo, R. Arita, H. Sawa, Y. Nakamura, T. Hara, and T. Arima 

Physical Review Research 8 (2026) 043058.

　・Stabilizing Itinerant Electrons in a Corner-Sharing Kagomé Oxide Nd4Os3ZnO14

R. Okuma*, Y. Fujisawa, C. Hsu, K. Kojima, D. Nishio-Hamane, K. Sumida, A. Kimura, A. Yasui, K. Yamagami, J. Yamaura, Y. Okamoto

Chemistry of Materials 38 (2026) 9012-9020.

　・Competing Electron-Deficient σ‑Bond Configurations across Successive Structural Transitions in Li0.5VS2

K. Kojima*, S. Yamamoto, K. Sugimoto, K. Iida, T. Ishigaki, Y. Ohta, and N. Katayama* 

Chemistry of Materials 38 (2026) 10455-10464.

Press Release (Japanese Only): Okayama Univ., Kitasato Univ., J-PARC

　・V and Se spectral reconstruction by charge density wave formation in  probed by angle-resolved photoemission spectroscopy

K. Fujinuma*, T. Hara, M. Emi, N. Katayama, H. Sawa, X. Zhao, K. Takubo, G. Tomassucci, F. Minati, A. Barinov, K. Ozawa, N.L. Saini, T. Mizokawa 

Physical Review B 113 (2026) 235112.

　・Coupled structural and electronic revolution under pressure in CuIr2Se4, CuRh2S4 ,and CuRh2Se4

M. Emi, M. Shiomi, K. Kojima, K. Sugimoto, T. Karasawa, H. Suzuki, M. Takahashi, K. Oka, H. Kadobayashi, S. Kawaguchi-Imada, N. Hirao, T. Ohashi, D. Ito, T. Kubo, M. Matsushita, M. Nohara, K. Matsubayashi* and N. Katayama*

submitted.

2025

　・Negative thermal expansion induced by coordination number change in high-entropy oxides 

N. Iida, R. Kasugai, K. Ikeda, K. Saitoh, D. Ito, N. Katayama, Y. Okamoto, D. Hirai, and K. Takenaka*

AIP Advances 15 (2025) 115324.

　・Negative thermal expansion in Co3BO5 induced by ceramic microstructural effects

K. Yagi, Y. Mineno, N. Katayama, D. Hirai, and K. Takenaka*

AIP Advances 15 (2025) 105208.

　・Local structural distortion with a ferroic interaction in 1⁢𝑇′−TaTe2

D. Ito, K.Kimura, T. Ohashi, H. Tajiri, K. Hayashi, N. Katayama*

Physical Review B 112 (2025) 064112.

　・Reexamination of the charge-ordered dimer pattern in the spinel compound CuIr2S4 using single-crystal synchrotron x-ray diffraction

T. Ohashi, N. Katayama*, K. Kojima, M. Emi, C. Koyama, T. Hara, K. Hashimoto, S. Kitani, H. Kawaji, H.S. Suzuki, S. Nagata, K. Sugimoto, K. Iida, H. Sawa 

Physical Review B 111 (2025) 224114.

　・Composition evolution of crystal structure and negative thermal expansion in pyro-vanadate–phosphate Cu1.8Zn0.2V2-xPxO7

M. Kawakita, F. Ikawa, K. Yagi, M. Kano, T. Kubo, Y. Yokoyama, N. Katayama, Y. Okamoto, D. Hirai, K. Takenaka* 

Applied Physics Letters 126 (2025) 091902.

　・Diffuse Scattering and Low-Temperature Crystal Structure of τ-Type Molecular Conductor

T. Hara, S. Kitou, N. Katayama, H. Yoshino, H. Sawa

Journal of the Physical Society of Japan 94 (2025) 024602.

　・Topological electronic structure and transport properties of the distorted rutile-type WO2

Y. Muramatsu, D. Hirai*, M. Kawamura, S. Minami, Y. Ikeda, T. Shimada, K. Kojima, N. Katayama, K. Takenaka 

APL Materials 13 (2025) 011119.

2024年以前の論文リスト