Assoc. Prof. Dr. Ziyu  Liu is a post‑doctoral research scientist in the Department of Physics at Columbia University, where he works in the Dean Lab, specializing in experimental condensed‑matter physics. His research centers on correlated phases in quantum materials, investigated through electronic transport measurements and optical spectroscopy. His interests span phenomena such as collective excitations and phase interplay in the fractional quantum Hall effect, engineering the band structure of materials via superlattice potential modulations, and developing next‑generation quantum devices using van der Waals heterostructures. Over recent years he has contributed to key experimental advances: for example, his work demonstrated high‑mobility monolayer semiconductor devices facilitating access to correlation-driven quantum phases at low charge density; he has also explored dynamic interfacial quantum dipoles in two-dimensional heterostructures, revealing a novel mechanism for hysteretic gate responses in graphene/BN-based devices — with potential implications for nanoelectronic memory and quantum‑device design. His approach combines precision device fabrication, low-temperature transport measurements, and spectroscopic techniques to probe subtle many-body effects in quantum materials. Through these efforts he advances understanding of how quantum interactions and material engineering can produce emergent quantum phenomena; his work contributes both fundamental insight into condensed-matter physics and practical pathways toward advanced quantum technologies. In conclusion, Ziyu Liu stands out as an experimental physicist bridging materials engineering, quantum‑many body physics, and device innovation — helping to push the frontier of quantum materials research through rigorous experimentation and inventive design. He has achieved 691 Citations, 59 Documents, 14 h‑index.

 Profiles:  Scopus | Research Gate

Featured Publications

Liu, Z., et al. (2026). Decoding cetane number law of key aviation fuel components: From structure–property relationships to reaction pathway analysis.

Liu, Z., et al. (2025). Microalgae biorefinery in the belt and road initiative: Opportunities for green growth.

Liu, Z., et al. (2025). Synergistic remediation of Cd-contaminated soil with biochar-sulfate reducing bacteria: Differential roles of straw- and sludge-derived biochars. Journal of Hazardous Materials.

Liu, Z., et al. (2025). Phenylboronic Acid-Modified and ROS-Responsive Polymeric Nanoparticles for Targeted Anticancer Drug Delivery. ACS Applied Nano Materials.

Liu, Z., et al. (2025). Carbon dots for reactive oxygen species modulation.