典型文献
Ferroelectricity in hBN intercalated double-layer graphene
文献摘要:
Van der Waals(vdW)assembly of two-dimensional materials has long been recognized as a powerful tool for creating unique systems with prop-erties that cannot be found in natural compounds[Nature 499,419(2013)].However,among the variety of vdW heterostructures and their various properties,only a few have revealed metallic and ferroelectric behaviour signatures[Sci.Adv.5,eaax5080(2019);Nature 560,336(2018)].Here we show ferroelectric semimetal made of double-gated double-layer graphene separated by an atomically thin crystal of hexagonal boron nitride.The structure demonstrates high room temperature mobility of the order of lo m2·V-1·s-1 and exhibits ambipolar switching in response to the external electric field.The observed hysteresis is reversible and persists above room temperature.Our fabrication method expands the family of ferro-electric vdW compounds and offers a promising route for developing novel phase-changing devices.A possible microscopic model of ferroelec-tricity is discussed.
文献关键词:
中图分类号:
作者姓名:
Yibo Wang;Siqi Jiang;Jingkuan Xiao;Xiaofan Cai;Di Zhang;Ping Wang;Guodong Ma;Yaqing Han;Jiabei Huang;Kenji Watanabe;Takashi Taniguchi;Yanfeng Guo;Lei Wang;Alexander S.Mayorov;Geliang Yu
作者机构:
National Laboratory of Solid State Microstructures and School of Physics,Nanjing University,Nanjing 210093,China;National Institute for Materials Science,1-1 Namiki,Tsukuba 305-0044,Japan;School of Physical Science and Technology,Shanghai Tech University,Shanghai 201210,China;Collaborative Innovation Centre of Advanced Microsctructures,Nanjing University,Nanjing 210093,China
文献出处:
引用格式:
[1]Yibo Wang;Siqi Jiang;Jingkuan Xiao;Xiaofan Cai;Di Zhang;Ping Wang;Guodong Ma;Yaqing Han;Jiabei Huang;Kenji Watanabe;Takashi Taniguchi;Yanfeng Guo;Lei Wang;Alexander S.Mayorov;Geliang Yu-.Ferroelectricity in hBN intercalated double-layer graphene)[J].物理学前沿,2022(04):59-65
A类:
Ferroelectricity,eaax5080,ferroelec
B类:
hBN,intercalated,double,layer,graphene,Van,Waals,vdW,assembly,two,dimensional,materials,long,been,recognized,powerful,tool,creating,unique,systems,that,cannot,found,natural,compounds,Nature,However,among,variety,heterostructures,their,various,properties,only,few,have,revealed,metallic,ferroelectric,behaviour,signatures,Sci,Adv,Here,show,semimetal,made,gated,separated,by,atomically,thin,crystal,hexagonal,boron,nitride,demonstrates,high,room,temperature,mobility,order,exhibits,ambipolar,switching,response,external,field,observed,hysteresis,reversible,persists,above,Our,fabrication,method,expands,family,offers,promising,route,developing,novel,phase,changing,devices,possible,microscopic,model,discussed
AB值:
0.665644
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