Publications (21)
Anomalous Hall effect from nonlinear magnetoelectric coupling
Longju Yu, Hong Jian Zhao, Yurong Yang +2
The anomalous Hall effect (AHE) is a topology-related transport phenomenon being of potential interest in spintronics, because this effect enables the efficient probe of magnetic o…
Novel magnetoelectric effects via penta-linear interactions
Hong Jian Zhao, M. N. Grisolia, Yurong Yang +4
Magnetoelectric multiferroic materials, particularly with the perovskite structure, are receiving a lot of attention because of their inherent coupling between electrical polarizat…
Ferroelectrically tunable topological phase transition in InSe thin films
Zhiqiang Tian, Ziming Zhu, Jiang Zeng +4
Materials with ferroelectrically switchable topological properties are of interest for both fundamental physics and practical applications. Using first-principles calculations, we…
Prediction of a Stable Post-Post-Perovskite Structure from First Principles
Changsong Xu, Bin Xu, Yurong Yang +6
A novel stable crystallographic structure is discovered in a variety of ABO3, ABF3 and A2O3 compounds (including materials of geological relevance, prototypes of multiferroics, exh…
Study of strain effect on in-plane polarization in epitaxial BiFeO3 thin films using planar electrodes
Zuhuang Chen, Xi Zou, Wei Ren +8
Epitaxial strain plays an important role in determining physical properties of perovskite ferroelectric oxide thin films. However, it is very challenging to directly measure proper…
Observation of uniaxial strain tuned spin cycloid in a freestanding BiFeO3 film
Zhe Ding, Yumeng Sun, Ningchong Zheng +10
Non-collinear spin order that breaks space inversion symmetry and allows efficient electric-field control of magnetism makes BiFeO a promising candidate for applications in low…
Zeeman effect in centrosymmetric antiferromagnets controlled by an electric field
Hong Jian Zhao, Xinran Liu, Yanchao Wang +3
Centrosymmetric antiferromagnetic semiconductors, although abundant in nature, seem less promising than ferromagnets and ferroelectrics for practical applications in semiconductor…
Structural phase transition and material properties of few-layer monochalcogenides
Mehrshad Mehboudi, Benjamin M. Fregoso, Yurong Yang +6
GeSe and SnSe monochalcogenide monolayers and bilayers undergo a two-dimensional phase transition from a rectangular unit cell to a square unit cell at a temperature well bel…
Active learning of effective Hamiltonian for super-large-scale atomic structures
Xingyue Ma, Hongying Chen, Ri He +8
The first-principles-based effective Hamiltonian scheme provides one of the most accurate modeling technique for large-scale structures, especially for ferroelectrics. However, the…
Superionic Fluoride Gate Dielectrics with Low Diffusion Barrier for Advanced Electronics
Kui Meng, Zeya Li, Peng Chen +14
Exploration of new dielectrics with large capacitive coupling is an essential topic in modern electronics when conventional dielectrics suffer from the leakage issue near breakdown…
Negative electrocaloric effect in nonpolar phases of perovskite over wide range of temperature
Xingyue Ma, Mingxing Chen, Jun-Ming Liu +2
The electrocaloric effect (ECE) offers a promising alternative to the traditional gas compressing refrigeration due to its high efficiency and environmental friendliness. The unusu…
Large elasto-optic effect and reversible electrochromism in multiferroic BiFeO3
D. Sando, Yurong Yang, E. Bousquet +8
The control of optical fields is usually achieved through the electro-optic or acousto-optic effect in single-crystal ferroelectric or polar compounds such as LiNbO3 or quartz. In…
Quadratic piezoelectricity from stacking-engineered interference in multilayer sliding ferroelectrics
Jiaxuan Fan, Yuexing Zhao, Xiao-Ping Li +3
Designing nonlinear piezoelectricity requires suppressing the linear piezoelectric coefficient without extinguishing higher-order electromechanical response, yet a general and reco…
Ultrafast switching of sliding ferroelectricity and dynamical magnetic field in van der Waals bilayer induced by light
Jian Wang, Xu Li, Xingyue Ma +6
Sliding ferroelectricity is a unique type of polarity recently observed in a properly stacked van der Waals bilayer. However, electric-field control of sliding ferroelectricity is…
Altermagnetic type-II Multiferroics with Néel-order-locked Electric Polarization
Wen-Ti Guo, Junqi Xu, Yurong Yang +2
Altermagnetism, an emergent magnetic phase featuring compensated collinear magnetic moments and momentum-dependent spin splittings, has recently garnered widespread interest. A cri…
Tencent Advertising Algorithm Challenge 2025: All-Modality Generative Recommendation
Junwei Pan, Wei Xue, Chao Zhou +20
Generative recommender systems are rapidly emerging as a new paradigm for recommendation, where collaborative identifiers and/or multi-modal content are mapped into discrete token…
Large Enhancement of Properties in Strained Lead-free Multiferroic Solid Solutions with Strong Deviation from Vegard's Law
Tao Wang, Mingjie Zou, Dehe Zhang +18
Efforts to combine the advantages of multiple systems to enhance functionlities through solid solution design present a great challenge due to the constraint imposed by the classic…
Engineering ferroelectricity in monoclinic hafnia
Hong Jian Zhao, Yuhao Fu, Longju Yu +4
Ferroelectricity in the complementary metal-oxide semiconductor (CMOS)-compatible hafnia (HfO) is crucial for the fabrication of high-integration nonvolatile memory devices. Ho…
Flexoelectricity-stabilized ferroelectric phase with enhanced reliability in ultrathin La:HfO2 films
Peijie Jiao, Hao Cheng, Jiayi Li +12
Doped HfO2 thin films exhibit robust ferroelectric properties even for nanometric thicknesses, are compatible with current Si technology and thus have great potential for the reviv…
Cooperative Couplings between Octahedral Rotations and Ferroelectricity in Perovskites
Teng Gu, Timothy Scarbrough, Yurong Yang +3
The structure of ABO3 perovskites is dominated by two types of unstable modes, namely, the oxygen octahedral rotation (AFD) and ferroelectric (FE) mode. It is generally believed th…
Giant energy density nitride dielectrics enabled by a paraelectric-metaparaelectric phase transition
Zhijie Liu, Xingyue Ma, Lan Chen +6
Electrostatic dielectric capacitors are foundational to advance the electronics and electric power devices due to their ultrafast charging/discharging capability and high-power den…