Research Interests
1. Complex oxide heterostructures, superlattices, and interfaces for next-generation applications.
2. Fabrication and characterization of oxide freestanding matters.
3. Optical control of strongly correlated phenomena. 
4. Growth and characterization of quantum materials.
5. Functional oxide elements with controlled dimensionalities.
6. Multifunctional oxide electronics.

Lab website：https://janchiyang.wixsite.com/jcygroup

2019.8 – present Assistant Professor, National Cheng Kung University, Taiwan
2016.8 – 2019.7 Assistant Professor, National Cheng Kung University, Taiwan
2015.9 – 2016.7 Post-Doctoral Researcher, Max Planck Institute for Chemical Physics of Solids, Dresden, Germany
2014.8 – 2015.8 Post-Doctoral Researcher, Institute of Physics, National Chiao Tung University, Taiwan
2013.7 – 2014.7  Visiting Scholar, Advanced Light Source, Lawrence Berkeley National Laboratory (USA)
2009.8 – 2014.7  Ph.D., Department of Materials Science and Engineering, National Chiao Tung University, Taiwan
 

Selected recent publications:

1. "Extremely fast optical and non-volatile control of mixed-phase multiferroic BiFeO3 via instantaneous strain perturbation" Adv. Mater. accepted. (2021) 
2. "Deterministic optical control of room temperature multiferroicity in BiFeO3 thin films" Nature Mater. 18, 580–587 (2019).
3. "Ultrafast Giant Photostriction of Epitaxial Strontium Iridate Film with Superior Endurance", Nano Lett. 18, 7742 (2018)."A Gate-free Monolayer WSe2 p-n Diode", Nature Commun. 9, 3143 (2018).
4. "Ultrafast Giant Photostriction of Epitaxial Strontium Iridate Film with Superior Endurance", Nano Lett. 18, 7742 (2018).
5. "Field enhancement of electronic conductance at ferroelectric domain walls", Nature Commun. 8, 1317(2017).
6. "Atomic-scale mechanisms of defect induced retention failure in ferroelectrics", Nano Lett. 17, 3556 (2017).
7. "Rewritable ferroelectric vortex pairs in BiFeO3", npj Quant. Mater. 2, 43 (2017).
8. “Single antiferromagnetic axis in multiferroic BiFeO3”, Nature Commun. 7, 12712 (2016)
9. “Anomalous electronic anisotropy triggered by ferroelectric coupling in multiferroic heterostructures”, Adv. Mater. 28, 876 (2015).
10. “BiFeO3 Thin Films: A Playground to Electric-Field Control of Functionalities”, Annu. Rev. Mater. Res. 45, 249 (2015).
11. “Magnetic mesocrystals assisted magnetoresistance in manganite”, Nano Lett. 14, 6073 (2014).

1. 8th (2020) Outstanding Young Scholar Awards from Foundation for the Advancement of Outstanding Scholarship 
2. 18th Y. Z. Hsu Scientific Paper Award (2020) 
3. 2019 Taiwan Outstanding Young Physicist Award 
4. Ministry of Science and Technology Young Scholar Fellowship (2018-2023)