| 1 | Magnetic two-dimensional layered crystals meet with ferromagnetic semiconductors显示文摘The existence of intrinsic ferromagnetic semiconductors(FMSs)in twodimensional(2D)materials has been a long-term concern and pursuit.Recent breakthroughs in the 2D FMSs,such as CrGeTe3 and CrX3(X=Cl,Br,I)from bulk down to monolayer,have stimulated intensive researches on new physical phenomena and creative concepts.This minireview mainly summarizes recent progress of 2D intrinsic FMSs in theoretical side,and focuses on the ongoing strategies proposed to enhance ferromagnetism,involving the mechanisms of magnetic exchange interaction and the significance of magnetic anisotropy.Meanwhile,spin-related multifunctionality with ultrathin FMSs and their van de Waals heterostructures in magnetoelectric,valleytronic,and nondissipative electronic technology are introduced,as well as the current challenges and the prospects in this field are discussed. | Yilv Guo Bing Wang Xiwen Zhang Shijun Yuan Liang Ma Jinlan Wang | 2020 | InfoMat2020，2，4： | 6 |
| 2 | Electron doping induced stable ferromagnetism in two-dimensional GdI_(3)monolayer显示文摘As a two-dimensional material with a hollow hexatomic ring structure,Néel-type anti-ferromagnetic(AFM)GdI_(3)can be used as a theoretical model to study the effect of electron doping.Based on first-principles calculations,we find that the Fermi surface nesting occurs when more than 1/3 electron per Gd is doped,resulting in the failure to obtain a stable ferromagnetic(FM)state.More interestingly,GdI_(3)with appropriate Mg/Ca doping(1/6 Mg/Ca per Gd)turns to be half-metallic FM state.This AFM–FM transition results from the transfer of doped electrons to the spatially expanded Gd-5d orbital,which leads to the FM coupling of local half-full Gd-4f electrons through 5d–4f hybridization.Moreover,the shortened Gd–Gd length is the key to the formation of the stable ferromagnetic coupling.Our method provides new insights into obtaining stable FM materials from AFM materials. | Rong Guo Yilv Guo Yehui Zhang Xiaoshu Gong Tingbo Zhang Xing Yu Shijun Yuan Jinlan Wang | 2023 | Frontiers of physics2023，18，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员