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Three-dimensional topological ferroelectrics
Haohao Sheng, Sheng Zhang, Zhong Fang +2
Three-dimensional (3D) topological ferroelectric (FE) insulators, in which topological and FE orders naturally coexist, enable field-controlled spintronic devices. In this work, we…
Manipulation of topological phase transitions and the mechanism of magnetic interactions in Eu-based Zintl-phase materials
Bo-Xuan Li, Ziyin Song, Zhong Fang +2
Various topological phases, including topological insulators, topological semimetals, and topological superconductors, along with the controllable topological phase transitions, ha…
Excitonic Instability in Ta2Pd3Te5 Monolayer
Jingyu Yao, Haohao Sheng, Ruihan Zhang +7
By systematic theoretical calculations, we have revealed an excitonic insulator (EI) in the Ta2Pd3Te5 monolayer. The bulk Ta2Pd3Te5 is a van der Waals (vdW) layered compound, where…
Magnetic kagome materials RETi3Bi4 family with weak interlayer interactions
Jingwen Guo, Liqin Zhou, Jianyang Ding +16
Kagome materials have attracted a surge of research interest recently, especially for the ones combining with magnetism, and the ones with weak interlayer interactions which can fa…
Majorana corner modes in unconventional monolayers of the 1T-PtSe2 family
Haohao Sheng, Yue Xie, Quansheng Wu +5
In this work, we propose that Majorana zero modes can be realized at the corners of the two-dimensional unconventional insulator. We demonstrate that 1T-PtSe2 is a symmetry indicat…
Enumeration of spin-space groups: Towards a complete description of symmetries of magnetic orders
Yi Jiang, Ziyin Song, Tiannian Zhu +5
Symmetries of three-dimensional periodic scalar fields are described by 230 space groups (SGs). Symmetries of three-dimensional periodic (pseudo-) vector fields, however, are descr…