2024-03-28T17:53:11Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00030327
2023-01-16T04:23:44Z
320:321:322
Intercalated Cu^+ ion dynamics in the two-dimensional layered compound Cu0.33TiSe2
Kitou, Shunsuke
100604
Hasegawa, Takumi
100605
Nakano, Akitoshi
100606
Katayama, Naoyuki
100607
Tsutsui, Satoshi
100608
Sawa, Hiroshi
100609
Cu^+ ion behavior is one of the heavily discussed topics in physical and material fields because of its unclear behavior and high potential in materials application. To provide a breakthrough in this field, comprehensive research that connects the real space and the reciprocal lattice (momentum) space is effective. Here, we investigated the Cu^+ ion behavior in two-dimensional layered system Cu0.33TiSe2, which shows the Cu^+ disorder-order phase transition at 200 K. Inelastic x-ray scattering revealed a large change of the Cu^+ ion dynamics at the phase transition. It is expected that the complex interactions are involved in the behavior of Cu^+ ions intercalated in the negatively charged TiSe2 layers by charge transfer. However, Monte Carlo simulations using a simple combination of repulsive forces between Cu^+ ions well reproduce the characteristic temperature dependence of the anisotropic diffuse scattering. These insights provide a unified understanding in controlling the intercalated system.
journal article
American Physical Society
2020-03-31
application/pdf
Physical Review B
9
101
094108
2469-9950
2469-9969
https://nagoya.repo.nii.ac.jp/record/30327/files/PhysRevB101_094108.pdf
eng
https://doi.org/10.1103/PhysRevB.101.094108
© 2020 American Physical Society