[F1-P204] Poster 204

[F1-P204-34] Mechanism of Negative Thermal Expansion in Monoclinic Cu₂P₂O₇: A First-Principles Lattice-Dynamics Study

*Kaede Nagamatsu¹, Yasuhide Mochizuki¹, Hiroki Koiso¹, Toshihiro Isobe¹, Akira Nakajima¹ (1. Tokyo Inst. of Tech. (Japan))

キーワード：Negative Thermal Expansion, Phonon, Grüneisen Parameter, First-Principles Calculation