Ning-Jing Yang

Exploring topological quantum matter, symmetry-protected phases, and spin-layer interplay.

Ph.D. student in Physics
Fujian Normal University

Research Interests

Higher-order topology / Hall effects / Quantum geometry / Topological phase transitions / Topological Superconductivity / ferroelectricity and ferromagnetism / Machine learning–assisted modeling.

Higher-Order Topological Phase Transitions and Hall Effect

During my Ph.D., I focused on higher-order topological phase transitions in two-dimensional quantum materials, driven by the interplay of multiple internal degrees of freedom—including spin, layer, orbital, and valley. By combining tight-binding modeling with first-principles calculations, I revealed how spin–layer locking, interlayer ferroelectric sliding, and magnetic symmetry breaking can induce transitions between topologically distinct phases, giving rise to robust corner-localized states. I systematically explored the thermoelectric and transport signatures accompanying these transitions, including the anomalous Hall effect, the anomalous Nernst effect, and the thermal Hall effect. These Hall-type responses not only serve as effective probes of the topological phase boundaries, but also reflect the entangled nature of multiple degrees of freedom in higher-order topological states.

Publications

  1. Ning-Jing Yang, Jian-Min Zhang, Xiao-Ping Li, Zeying Zhang, Zhi-Ming Yu, Zhigao Huang, and Yugui Yao, Sliding Ferroelectrics Induced Hybrid-Order Topological Phase Transitions, Physical Review Letters, 134, 256602 (2025).

  2. Ning-Jing Yang, Jun-Hao Li, Zhigao Huang, Jian-Min Zhang, Orbital Hall effect characterizing higher-order topological phase transitions in monolayers of ferromagnetic materials, Physical Review B, 111, 235435 (2025).

  3. Ning-Jing Yang, Hai Yang, Zhigao Huang, Jian-Min Zhang, Second-order topological insulators in Kekulé-patterned hexagonal biphenylene networks, Applied Physics Letters, 126, 033101 (2025).

  4. Ning-Jing Yang, Zhigao Huang, Jian-Min Zhang, Hybrid-order topological phase and transition in 1H transition metal compounds, Applied Physics Letters, 125, 263102 (2024).

  5. Ning-Jing Yang, Jian-Min Zhang, Higher-order topological phase diagram revealed by anomalous Nernst effect in a Janus ScClI monolayer, Physical Review B, 109, 035423 (2024).

  6. Ning-Jing Yang, Wen-Ti Guo, Hai Yang, Zhigao Huang, Jian-Min Zhang, Topological phases, local magnetic moments, and spin polarization triggered by C 558-line defects in armchair graphene nanoribbons, Physical Chemistry Chemical Physics, 26, 17075-17082 (2024).

  7. Wen-Ti Guo, NingJing Yang, Zhigao Huang, Jian-Min Zhang, Novel magnetic topological insulator FeBi 2 Te 4 with controllable topological quantum phase, Journal of Materials Chemistry C, 11, 12307-12319 (2023).

  8. NingJing Yang, Hai Yang, Guojun Jin, Interface-induced topological phase and doping-modulated bandgap of two-dimensioanl graphene-like networks, Chinese Physics B, 109, 035423 (2023).

  9. NingJing Yang, Qingyuan Chen, Yafang Xu, Jinlong Luo, Hai Yang, Guojun Jin, Strain-modulated electronic transport in two-dimensional carbon allotropes, AIP Advance, 12, 045102 (2022).