Papers › Pressure-induced nearly perfect rectangular lattice and superconductivity in an...
Pressure-induced nearly perfect rectangular lattice and superconductivity in an organic molecular crystal (DMET-TTF)₂AuBr₂
Taiga Kato, Hanming Ma, Kazuyoshi Yoshimi, Takahiro Misawa, Shigen Kumagai, Youhei Iida, Yoshiaki Sasaki, Masashi Sawada, Jun Gouchi, Takuya Kobayashi, Hiromi Taniguchi, Yoshiya Uwatoko, Hiroyasu Sato, Noriaki Matsunaga, Atsushi Kawamoto, Kazushige Nomura
The archive published only this paper's code-link row. Authors, date and abstract are from arXiv's metadata (CC0), read from the Kaggle arXiv metadata snapshot of 2026-09-12 where its title matched the archive's; the title is the archive's.
External pressure and associated changes in lattice structures are key to realizing exotic quantum phases such as high-T_c superconductivity. While applying external pressure is a standard method to induce novel lattice structures, its impact on organic molecular crystals has been less explored. Here we report a unique structural phase transition in (DMET-TTF)₂AuBr₂ under pressure. By combining advanced high-pressure techniques and ab initio calculations, we elucidate that (DMET-TTF)₂AuBr₂ undergoes a transition from a quasi-one-dimensional lattice to a nearly perfect rectangular lattice at 0.9 GPa. This transition leads to the realization of an antiferromagnetic Mott insulator with T_N=66 K, the highest T_N in low-dimensional molecular crystal solids to date. Upon increasing the pressure, the antiferromagnetic ordering is suppressed, and a superconducting phase with T_c=4.8 K emerges around 6 GPa. Our study reveals the significant impact of external pressure on lattice structures of organic molecular crystals and highlights the intricate relationship between geometrical frustration and superconductivity. Our findings also pave the way for realizing functional organic molecular crystals through changes in lattice structures by pressure.
Code
Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.
Code Syntology ran Syntology
Not run by Syntology. Nothing on this page verifies that the listed code works.
Results from the paper archive 2025-07-28
No leaderboard rows for this paper in the archive.
Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections