Recently, the research work titled "Direction-Control of Anisotropic Electronic Behaviors via Ferroelasticity in Two-Dimensional α-MPI (M = Zr, Hf)" is published on Materials Horizons (IF=14.356). This work is aminly finished by School of Physics and State Key Laboratory of Crystal Materials of Shandong University. Prof.Ma Yandong and Prof.Dai Ying are the corresponding authors and postgraduate student Ting Zhang is the first author of this paper.
Two-dimensional ferroelastic materials holdunique structuralcharacteristics andoutstanding chemical and physical properties, which have great promise for applications in memory devices, multifunctional devices, and novel controllable devices. At present,the work in this fieldfocuses on the coupling of ferroelastic and ferroelectric properties, i.e.,multiferroicity, while the research on modulation of electronic behaviors by ferroelasticity is rare. Prof. Dai Ying'sgroup foundsingle-layerα-MPI (M = Zr, Hf) not only harbors ultrahigh intrinsic carrier mobility with an anisotropic character, but also exhibits excellent ferroelasticity. Their anisotropic electronic properties change predictably after ferroelastic switching: anisotropic electronic behaviors would also be rotated by 90° with ferroelastic switching, which achieve the direction-control of anisotropic electronic properties in single-layer α-MPI.
Prof. Dai Ying's group has been focusing on two-dimensional materials' novel properties and applications for an extended period, and has obtained a series of innovative achievements. The relevant research results have been published in Nano Energy, ACS Nano, Nano Lett., Adv. Mater., Angew. Chem. In. Ed., J. Am. Chem. Soc., Phys. Rev. B and other famous international journals. The research is supported by the State Key Laboratory of Crystal Materials, National Natural Science foundation of China (No. 11804190),Shandong Provincial Natural Science Foundation of China,Qilu Young Scholar Program of Shandong University, and Taishan Scholar Program of Shandong Province, and Youth Science and Technology Talents Enrollment Project of Shandong Province.
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Written by: Ma Yandong
Edited by: Che Huiqing