78 citations · 976 across the 32 of their papers we have counts for
25 papers · 1 filter
Spin State Disproportionation in Insulating Ferromagnetic LaCoO3 Epitaxial Thin Films
Shanquan Chen, Jhong-Yi Chang, Qinghua Zhang +14
The origin of insulating ferromagnetism in epitaxial LaCoO3 films under tensile strain remains elusive despite extensive research efforts have been devoted. Surprisingly, the spin…
Emergent topological states via digital (001) oxide superlattices
Zhiwei Liu, Hongquan Liu, Jiaji Ma +3
Oxide heterostructures exhibit many intriguing properties. Here we provide design principles for inducing multiple topological states in (001) (O)/(O) oxid…
Pressure-induced metal-insulator transition in oxygen-deficient LiNbO-type ferroelectrics
Chengliang Xia, Yue Chen, Hanghui Chen
Hydrostatic pressure and oxygen vacancies usually have deleterious effects on ferroelectric materials because both tend to reduce their polarization. In this work we use first-prin…
Dynamical structural instability and its implication on the physical properties of infinite-layer nickelates
Chengliang Xia, Jiaxuan Wu, Yue Chen +1
We use first-principles calculations to find that in infinite-layer nickelates NiO, the widely studied tetragonal structure is only dynamically stable for early lan…
A large modulation of electron-phonon coupling and an emergent superconducting dome in doped strong ferroelectrics
Jiaji Ma, Ruihan Yang, Hanghui Chen
We use first-principles methods to study doped strong ferroelectrics (taking BaTiO as a prototype). Here we find a strong coupling between itinerant electrons and soft polar ph…
Manipulating Berry curvature of SrRuO3 thin films via epitaxial strain
Di Tian, Zhiwei Liu, Shengchun Shen +5
Berry curvature plays a crucial role in exotic electronic states of quantum materials, such as intrinsic anomalous Hall effect. As Berry curvature is highly sensitive to subtle cha…