Xingjiang Zhou

Sep 3, 2024 | nature.com | Jaewon Choi |Mirian García-Fernández |Stefano Agrestini |Xingjiang Zhou |Ke-Jin Zhou

AbstractHow Cooper pairs form and condense has been the main challenge in the physics of copper-oxide high-temperature superconductors. Great efforts have been made in the ‘underdoped’ region of the phase diagram, through doping a Mott insulator or cooling a strange metal. However, there is still no consensus on how superconductivity emerges when electron-electron correlations dominate and the Fermi surface is missing.

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.

Nov 8, 2023 | nature.com | Xingjiang Zhou

NEWS AND VIEWS 08 November 2023 Experiments reveal flat bands in the relationship between the energy and the momentum of electrons in a 3D solid. Such behaviour is indicative of unusual physical phenomena, and has previously been seen only in 2D materials. The material properties of a crystalline solid are dictated by how electrons move between its atoms. For example, electrons in an insulator are fixed in place, whereas metals have electrons that are free to roam.