Personal profile
Biography
Dr Peggy Qi Zhang is a Lecturer in the School of Engineering at Macquarie University. Her research focuses on ferroelectric and multiferroic materials, with particular expertise in epitaxial thin-film fabrication, scanning probe microscopy and nanofabrication.
Dr Zhang’s work centers on the design, fabrication, and characterisation of functional oxide thin films and nanomaterials, aiming to enable next-generation energy-efficient electronics. Her research integrates advanced thin-film deposition techniques (i.e., pulsed laser deposition and chemical solution deposition) with scanning probe microscopy and nanofabrication techniques to explore domain and domain wall functionalities, ferroelectric tunnelling junctions, and emergent topological defect driven low-energy devices.
Prior to joining Macquarie University, Dr Zhang held research and teaching positions at the University of New South Wales (2015-2023) and CSIRO (2023-2026). She has led and contributed to multiple ferroelectric based interdisciplinary projects. She was awarded the Women-in-FLEET Fellowship by the ARC Centre of Excellence in Future Low-Energy Electronics Technologies in 2019.
Her current research aims to develop strain-engineered and topology-driven material platforms for future low-energy devices.
Research interests
- Topological phase transitions in ferroic materials including topological defects, domain walls and Skyrmion structures.
- Development of new synthesis techniques for novel ferroelectric oxides with topological properties
- New nanolithography techniques to fabricate ferroelectric domain wall memory devices
- Investigation of nanoscale domains and topological transitions in ultrathin ferroelectric films
- Characterization using scanning probe microscopy (including piezoresponse force microscopy, conductive atomic force microscopy, Kelvin probe force microscopy, electrostatic force microscopy, etc.).
Teaching
- ENGG1000 - Introduction to Engineering
- MECH2005 - Engineering Materials
Education/Academic qualification
BEng & MEng, Huazhong University of Science and Technology
PhD, School of Materials Science and Engineering, UNSW
External positions
Visiting Fellow, UNSW
Fingerprint
- 1 Similar Profiles
Collaborations and top research areas from the last five years
Projects
-
Strain-Programmable Ferroelectric Devices for Next-Generation Flexible and Wearable Low-Energy Electronics
Zhang, P. Q. (Primary Chief Investigator)
Project: Research
-
Spherical ferroelectric solitons
Govinden, V., Prokhorenko, S., Zhang, Q., Rijal, S., Nahas, Y., Bellaiche, L. & Valanoor, N., May 2023, In: Nature Materials. 22, 5, p. 553-561 9 p.Research output: Contribution to journal › Article › peer-review
53 Link opens in a new tab Citations (Scopus) -
Ferroelectric solitons crafted in epitaxial bismuth ferrite superlattices
Govinden, V., Tong, P., Guo, X., Zhang, Q., Mantri, S., Seyfouri, M. M., Prokhorenko, S., Nahas, Y., Wu, Y., Bellaiche, L., Sun, T., Tian, H., Hong, Z., Valanoor, N. & Sando, D., 2023, In: Nature Communications. 14, p. 1-10 10 p., 4178.Research output: Contribution to journal › Article › peer-review
Open AccessFile38 Link opens in a new tab Citations (Scopus)12 Downloads (Pure) -
Top-down patterning of topological surface and edge states using a focused ion beam
Bake, A., Zhang, Q., Ho, C. S., Causer, G. L., Zhao, W., Yue, Z., Nguyen, A., Akhgar, G., Karel, J., Mitchell, D., Pastuovic, Z., Lewis, R., Cole, J. H., Nancarrow, M., Valanoor, N., Wang, X. & Cortie, D., 2023, In: Nature Communications. 14, p. 1-8 8 p., 1693.Research output: Contribution to journal › Article › peer-review
Open AccessFile7 Link opens in a new tab Citations (Scopus) -
A room-temperature ferroelectric resonant tunneling diode
Ma, Z., Zhang, Q., Tao, L., Wang, Y., Sando, D., Zhou, J., Guo, Y., Lord, M., Zhou, P., Ruan, Y., Wang, Z., Hamilton, A., Gruverman, A., Tsymbal, E. Y., Zhang, T. & Valanoor, N., 1 Sept 2022, In: Advanced Materials. 34, 35, p. 1-8 8 p., 2205359.Research output: Contribution to journal › Article › peer-review
Open AccessFile15 Link opens in a new tab Citations (Scopus)1 Downloads (Pure) -
Stability of ferroelectric bubble domains
Govinden, V., Rijal, S., Zhang, Q., Nahas, Y., Bellaiche, L., Valanoor, N. & Prokhorenko, S., Jan 2023, In: Physical Review Materials. 7, 1, p. 1-7 7 p., L011401.Research output: Contribution to journal › Letter › peer-review
23 Link opens in a new tab Citations (Scopus)