Kai Chang Lab

Low-Dimensional Quantum Materials - BAQIS

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Dr. Menghan Liao
(廖孟涵)

Associate Research Scientist 

E-mail: liaomh-at-baqis-dot-ac-dot-cn

Experiences

  • 2011 – 2015 B. S. in Physics, School of the Gifted Young, University of Science and Technology of China (中国科学技术大学)
  • 2015 – 2020 Ph.D. in Physics, Supervisors: Prof. Qi-Kun Xue and Prof. Ding Zhang,  Department of Physics, Tsinghua University (清华大学)
  • 2020 – 2021 Research Assistant, Department of Physics, Tsinghua University (清华大学)
  • 2021 – 2023 Postdoc, Department of Quantum Matter Physics, University of Geneva
  • 2024 – 2025 Scientific Collaborator II (Ambizione Fellow), Department of Quantum Matter Physics, University of Geneva
  • 2025 – Present Associate Research Scientist, Low-dimensional Quantum Materials Group, BAQIS.

Research Interests

Menghan Liao is dedicated to the experimental study of novel quantum phenomena in low-dimensional materials, including (1) The mechanism of high-temperature superconductivity and other novel superconducting states; (2) Two-dimensional magnetic semiconductors; (3) Novel physical phenomena arising from topological band structures. Dr. Liao employs modern nano-fabrication techniques (such as van der Waals stacking and electron beam lithography) to prepare high-quality electronic devices and carries out electrical transport studies at low temperatures and high magnetic fields. Currently, all device fabrication and measurement tasks can be carried out in the Low-dimensional Quantum Materials Group and the Beijing Academy of Quantum Information Sciences. Until February 2025, Menghan Liao has published 21 papers and has been cited over 2000 times, and his H-index is 13. 9 papers were published as the first author or co-first author, including 1 Nature Physics, 1 Nature Nanotechnology, 1 Physical Review X, 2 Nature Communications, 3 Nano Letters, and 1 Applied Physics Letters. He has also led a Swiss National Science Foundation project with funding of about 7.5 million RMB.

Publication

Selected Publications（#co-first author，*corresponding author）
           High-temperature superconductivity and novel superconducting state
  1. M. Liao#, Y. Zang#, Z. Guan, et al. “Superconductivity in few-layer stanene”, Nat. Phys. 14, 344 (2018). https://www.nature.com/articles/s41567-017-0031-6
  2. M. Liao, Y. Zhu, S. Hu, et al. “Little-Parks like oscillations in lightly doped cuprate superconductors”, Nat. Commun. 13, 1316 (2022). https://www.nature.com/articles/s41467-022-28954-w
  3. M. Liao, H. Wang, Y. Zhu, et al. “Coexistence of resistance oscillations and the anomalous metal phase in a lithium intercalated TiSe2 superconductor”, Nat. Commun. 12, 5342 (2021). https://www.nature.com/articles/s41467-021-25671-8
  4. Y. Zhu#, M. Liao#, Q. Zhang, et al. “Presence of s-Wave Pairing in Josephson Junctions Made of Twisted Ultrathin Bi2Sr2CaCu2O8+x Flakes” Phys. Rev. X, 11, 031011 (2021). https://journals.aps.org/prx/abstract/10.1103/PhysRevX.11.031011
  5. M. Liao, Y. Zhu, J. Zhang, et al. “Superconductor−Insulator Transitions in Exfoliated Bi2Sr2CaCu2O8+δ Flakes”, Nano Lett. 18, 5660 (2018). https://pubs.acs.org/doi/10.1021/acs.nanolett.8b02183
  6. Z. Cao#, M. Liao#*, H. Yan#, et al. “Spectroscopic evidence for a first-order transition to the orbital Fulde-Ferrell-Larkin-Ovchinnikov state” arXiv: 2409.00373, Science, in review
    2D magnets
  7. F. Yao#*, M. Liao#, M. Gibertini*, et al. “Switching the spin polarization of the conduction band in antiferromagnetic bilayer transistors on and off”, Nat. Nanotech, DOI: 10.1038/41565-025-01872-w
  8. Y. Dong#, Q. Cui#, M. Liao#, et al. “Possible existence of chiral spin textures in the Bi2Sr2CaCu2O8+δ/Fe1-xTbx heterostructure”, Appl. Phys. Lett. 124, 162407 (2024) 
  9. M. Liao#*, L. Gotta#, A. Vervelaki, et al. “Critical ferromagnetic order in a van der Waals monolayer”, submitted to Nature Physics
    Topological materials, scanning near-field optical microscopy, etc.
  10. M. Liao#, S. Jiang#, C. Hu, et al. “Tip-Enhanced Raman Spectroscopic Imaging of Individual Carbon Nanotubes with Subnanometer Resolution”, Nano Lett. 16, 4040 (2016). https://pubs.acs.org/doi/10.1021/acs.nanolett.6b00533
  11. K. Zhu#, Y. Cheng#, M. Liao#, et al. “Unveiling the Anomalous Hall Response of the Magnetic Structure Changes in the Epitaxial MnBi2Te4 Films.” Nano Lett. 24, 2181 (2024). https://pubs.acs.org/doi/10.1021/acs.nanolett.3c04095

Funding

  1. Ambizione Project: Unconventional superconductivity in van der Waals superconductor/magnet heterostructures, PI, 931,995 CHF, Swiss National Science Foundation

Awards

Menghan Liao has been awarded the “Academic Rising Star” by Tsinghua University, representing the highest academic achievement among graduate students. He has received the National Scholarship, Outstanding Thesis, and the Outstanding Graduate Award from Tsinghua University. He has also received the Outstanding Thesis and the Outstanding Graduate Award from the University of Science and Technology of China.

Opening Positions

We recruit PhD students and postdocs every year. Please contact us for details.

     Address: Building #3, West Area, No.10 Xi-bei-wang East Road, Haidian District, Beijing 100193, P.R. CHINA.