Fanming Qu

Oct 18, 2024 | nature.com | Anqi Wang |Tian Qian |Guangtong Liu |Fanming Qu |Kun Jiang |Zhijun Wang | +3 more

AbstractEdge states in topological systems have attracted great interest due to their robustness and linear dispersions. Here a superconducting-proximitized edge interferometer is engineered on a topological insulator Ta2Pd3Te5 with asymmetric edges to realize the interfering Josephson diode effect (JDE), which hosts many advantages, such as the high efficiency as much as 73% at tiny applied magnetic fields with an ultra-low switching power around picowatt.

Nov 23, 2023 | nature.com | Anqi Wang |Yuan Huang |Qinghua Zhang |Lin Gu |Xingjiang Zhou |Guangtong Liu | +3 more

AbstractThe interplay between topology and interaction always plays an important role in condensed matter physics and induces many exotic quantum phases, while rare transition metal layered material (TMLM) has been proved to possess both. Here we report a TMLM Ta2Pd3Te5 has the two-dimensional second-order topology (also a quadrupole topological insulator) with correlated edge states - Luttinger liquid.