High-Temperature Fractional Quantum Hall States

作者：Evelyn Tang, Jia‐Wei Mei, Xiao-Gang Wen · 发表于：Physical Review Letters · 年份：2011 · DOI：10.1103/physrevlett.106.236802 · 被引用次数：1236 · 研究领域：Quantum and electron transport phenomena、Topological Materials and Phenomena、Quantum many-body systems

We show that a suitable combination of geometric frustration, ferromagnetism, and spin-orbit interactions can give rise to nearly flatbands with a large band gap and nonzero Chern number. Partial filling of the flatband can give rise to fractional quantum Hall states at high temperatures (maybe even room temperature). While the identification of material candidates with suitable parameters remains open, our work indicates intriguing directions for exploration and synthesis.