Welcome to Xu Group!

We, as a group, learn, explore, and make discoveries together. Our current research interests are low dimensional complex oxides and their interface with organic semiconductors.

Research News

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Room temperature ferroelectricity in continuous croconic acid thin films
CA growth
Croconic acid is an organic ferroelectric material above room temperature. However, the fabrication of thin films has been difficult. Using physical vapor deposition at high vacuum, we demonstrated the growth of continuous croconic acid films of nm thickness, which retain room temperature ferroelectricity at the same time. See more details: Applied Physics Letters 109, 102902 (2016).

Kinetics and intermediate phases in epitaxial growth of Fe3O4 films from deposition and thermal reduction
Thermal reduction Fe3O4
Fe3O4 is arguably the oldest magnetic material known to the human beings. Yet new functionalities are being exploited constantly. Using the thermal reduction method, we have successfully grown Fe3O4 thin films of flat surface (atomic terrace). See more details: Journal of Applied Physics 120, 085313 (2016).