Ruijuan Xu

Assistant Professor

Dr. Ruijuan Xu is an Assistant Professor of Materials Science and Engineering at North Carolina State University. Ruijuan received her B.E. from Zhejiang University, her M.S. from the University of Illinois at Urbana-Champaign, and her Ph.D. from the University of California, Berkeley, all in Materials Science and Engineering. Before joining NC State, she was a GLAM Postdoctoral Fellow in the Department of Applied Physics at Stanford University and SLAC National Laboratory. Ruijuan’s current research focuses on the design and manipulation of novel functional properties and exotic phenomena in oxide thin films, heterostructures, and membranes. Her research group leverages atomic-scale epitaxy and state-of-the-art characterization techniques to construct novel ferroic materials, with an emphasis on applications in next-generation microelectronics and energy technologies.

Publications

Mind the Gap—Imaging Buried Interfaces in Twisted Oxide Moirés
Harikrishnan, K. P., Wei, X., Lee, C. H., Yoon, D., Lee, Y., Crust, K. J., … Muller, D. A. (2026, March 1), Advanced Materials, Vol. 3. https://doi.org/10.1002/adma.202521189
Coexisting Phases in NaNbO 3 Thin Films Influenced by Epitaxial Strain and Size Effects
Khandelwal, A., Crust, K. J., Ghanbari, R., Yu, Y., Xu, R., & Hwang, H. Y. (2025, October 14), Advanced Science, Vol. 10. https://doi.org/10.1002/advs.202510099
Electron ptychography reveals a ferroelectricity dominated by anion displacements
Muller, D., Harikrishnan, K. P., Xu, R., Patel, K., Crust, K., Khandelwal, A., … Hwang, H. (2025, April 22), Research Square. https://doi.org/10.21203/rs.3.rs-4971528/v1
Electron ptychography reveals a ferroelectricity dominated by anion displacements
Harikrishnan, K. P., Xu, R., Patel, K., Crust, K. J., Khandelwal, A., Zhang, C., … Muller, D. A. (2025, April 23), Nature Materials, Vol. 4. https://doi.org/10.1038/s41563-025-02205-x
Experimental progress in freestanding oxide membranes designed by epitaxy
Harbola, V., Xu, R., & Hong, S. S. (2025, January 17), Advances in Physics X, Vol. 10. https://doi.org/10.1080/23746149.2025.2450538
Low‐Loss Far‐Infrared Surface Phonon Polaritons in Suspended SrTiO 3 Nanomembranes
Koons, K., Bechtel, H. A., Taboada‐Gutiérrez, J., Ghanbari, R., Wang, Y., Corder, S. N. G., … Liu, Y. (2025, May 12), Advanced Functional Materials, Vol. 5. https://doi.org/10.1002/adfm.202501041
Strain-induced lead-free morphotropic phase boundary
Ghanbari, R., Harikrishnan, K. P., Patel, K., Zhou, H., Zhou, T., Liu, R., … Xu, R. (2025, August 20), Nature Communications, Vol. 16. https://doi.org/10.1038/s41467-025-63041-w
The classical-to-quantum crossover in the strain-induced ferroelectric transition in SrTiO3 membranes
Li, J., Lee, Y., Choi, Y., Kim, J.-W., Thompson, P., Crust, K. J., … Lee, W.-S. (2025, May 13), Nature Communications, Vol. 16. https://doi.org/10.1038/s41467-025-59517-4
Author Correction: Highly confined epsilon-near-zero and surface phonon polaritons in SrTiO3 membranes
Xu, R., Crassee, I., Bechtel, H. A., Zhou, Y., Bercher, A., Korosec, L., … Liu, Y. (2024), Nature Communications, 15(1). https://doi.org/10.1038/s41467-024-52983-2
Flexoelectric Enhancement of Strain Gradient Elasticity Across a Ferroelectric-to-Paraelectric Phase Transition
Harbola, V., Pesquera, D., Xu, R., Ashby, P. D., Martin, L. W., & Hwang, H. Y. (2024, August 12), Nano Letters, Vol. 8. https://doi.org/10.1021/acs.nanolett.4c02946

View all publications via NC State Libraries

Ruijuan Xu