65 citations · 126 across the 6 of their papers we have counts for
7 papers
Origin of Anomalous Size Effects in Ferroelectric Hafnia Thin Films
Tianyuan Zhu, Jingxuan Li, Zuhuang Chen +1
The persistence of ferroelectricity in ultrathin HfO films challenges conventional theories, particularly given the paradoxical observation that the out-of-plane lattice spacin…
Unexpected Density Functional Dependence of the Antipolar Phase in HfO
Di Fan, Tianyuan Zhu, Shi Liu
The antipolar phase of HfO has been suggested to play an important role in the phase transition and polarization switching mechanisms in ferroelectric hafnia. In this st…
Origin of Interstitial Doping Induced Coercive Field Reduction in Ferroelectric Hafnia
Tianyuan Zhu, Liyang Ma, Xu Duan +1
Hafnia-based ferroelectrics hold promise for nonvolatile ferroelectric memory devices. However, the high coercive field required for polarization switching remains a prime obstacle…
Progress in Computational Understanding of Ferroelectric Mechanisms in HfO
Tianyuan Zhu, Liyang Ma, Shiqing Deng +1
Since the first report of ferroelectricity in nanoscale HfO-based thin films in 2011, this silicon-compatible binary oxide has quickly garnered intense interest in academia and…
Intrinsic ferroelectric switching in two-dimension -InSe
Liyi Bai, Changming Ke, Zhongshen Luo +3
Two-dimensional (2D) ferroelectric semiconductors present opportunities for integrating ferroelectrics into high-density ultrathin nanoelectronics. Among the few synthesized 2D fer…
Epitaxial ferroelectric hafnia stabilized by symmetry constraints
Tianyuan Zhu, Shiqing Deng, Shi Liu
Ferroelectric memories experienced a revival in the last decade due to the discovery of ferroelectricity in HfO-based nanometer-thick thin films. These films exhibit exceptiona…
Onsite and intersite electronic correlations in the Hubbard model for halide perovskites
Jiyuan Yang, Tianyuan Zhu, Shi Liu
Halide perovskites (HPs) are widely viewed as promising photovoltaic and light-emitting materials for their suitable band gaps in the visible spectrum. Density functional theory (D…