7 papers
Many-body quantum geometric effects and entanglement at the 3D metal-insulator quantum phase transition
Jason Y. Yan, Xiaoyu Guo, R. Bhandia +3
Quantum geometry has emerged as a unifying concept across condensed matter physics, underlying phenomena from nonlinear topological response to flat-band superconductivity. While u…
Symmetry-Resolved Second Harmonic Generation in Quantum and Functional Materials
Xiaoyu Guo, Chang Jae Roh, Youngjun Ahn
Second harmonic generation (SHG) has evolved from a probe of noncentrosymmetric crystals into a symmetry-resolved optical method for identifying order parameters in quantum and fun…
Electrotoroidicity: New Paradigm for Transverse Electromagnetic Responses
Kai Du, Daegeun Jo, Xianghan Xu +7
The exploration of transverse electromagnetic responses in solids with broken spatial-inversion (I) and/or time-reversal (T) symmetries has unveiled numerous captivating phenomena,…
Tuning Coupled Toroidic and Polar Orders in a Bilayer Antiferromagnet
Chuangtang Wang, Xiaoyu Guo, Zixin Zhai +5
Magnetic toroidal order features a loop-like arrangement of magnetic dipole moments, thus breaking both spatial inversion (P) and time-reversal (T) symmetries while preserving thei…
Intertwined polar, chiral, and ferro-rotational orders in a rotation-only insulator
Weizhe Zhang, June Ho Yeo, Xiaoyu Guo +8
Intertwined orders refer to strongly coupled and mutually dependent orders that coexist in correlated electron systems, often underpinning key physical properties of the host mater…
Emerging orthorhombic two-dimensional van der Waals magnets
Xiaoyu Guo, Wenhao Liu, Bing Lv +1
Two-dimensional (2D) magnetism realized in van der Waals (vdW) materials has expanded to include a great variety of magnetic phases, over a short decade since its first discovery i…