2026-03-17 東北大学
図1. 磁気カイラルメタ分子の写真と模式図と実験結果。大きく分裂した磁気カイラルポラリトンで表裏の透過率が異なること、つまり赤と青の線があることが、マイクロ波の一方向透過（マジックミラー効果）を示している。
＜関連情報＞
- https://www.tohoku.ac.jp/japanese/2026/03/press20260317-01-micro.html
- chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.tohoku.ac.jp/japanese/newimg/pressimg/tohokuuniv-press20260317_01web_micro.pdf
- https://journals.aps.org/prb/abstract/10.1103/qlg7-ygq8
メタ分子中の磁気キラルポラリトンの大きな合成運動によるマイクロ波の一方向透過性 Microwave one-way transparency by large synthetic motion of magnetochiral polaritons in metamolecules
Kentaro Mita, Toshiyuki Kodama, Toshihiro Nakanishi, Tetsuya Ueda, Kei Sawada, Takahiro Chiba, and Satoshi Tomita
Physical Review B Published: 16 March, 2026
DOI: https://doi.org/10.1103/qlg7-ygq8
Abstract
We observe microwave nonreciprocal one-way transparency via ultrastrongly coupled magnetochiral polaritons (MChPs) in a metamolecule at room temperature. The experimental results using MCh metamolecules with simultaneous breaking of time-reversal and space-inversion symmetries are reproduced by numerical simulations. Based on effective polarizability tensor analyses, we verify massive synthetic motion of MChPs as an origin of the one-way transparency. This study paves a way to hybrid quantum systems and synthetic gauge fields using metamaterials.
