Starting from the transformation and upgrading of traditional culture,the optimization and development of traditional industries,and the innovation of traditional models,this paper used cultural entrepreneurship to tr...Starting from the transformation and upgrading of traditional culture,the optimization and development of traditional industries,and the innovation of traditional models,this paper used cultural entrepreneurship to trigger the thematic business engine,and explored Zhucheng City with its unique dinosaur culture.It proposed"Three-integration"rolling development mode to build Zhucheng into a new highland of cultural entrepreneurship and create new competitiveness under the background of agricultural and rural modernization development.This paper also explored from the perspective of multi-subject collaboration of cultural entrepreneurship.Government needs to establish rolling development pilot projects and promote their application;enterprises need to play the engine role of thematic business through the mode of"getting larger to help smaller ones";the masses need to pay attention to the reaction of culture to the economy,so as to promote the wave of high-level promotion of cultural inheritance and urban-rural integration.展开更多
The valley splitting has been realized in the graphene/Ni heterostructure with the splitting value of 14 meV,and the obtained valley injecting efficiency from the heterostructure into graphene was 6.18%[Phys.Rev.B 921...The valley splitting has been realized in the graphene/Ni heterostructure with the splitting value of 14 meV,and the obtained valley injecting efficiency from the heterostructure into graphene was 6.18%[Phys.Rev.B 92115404(2015)].In this paper,we report a way to improve the valley splitting and the valley injecting efficiency of the graphene/Ni heterostructure.By intercalating an Au monolayer between the graphene and the Ni,the split can be increased up to 50 meV.However,the valley injecting efficiency is not improved because the splitted valley area of graphene moves away from the Fermi level.Then,we mend the deviation by covering a monolayer of Cu on the graphene.As a result,the valley injecting efficiency of the Cu/graphene/Au/Ni heterostructure reaches 10%,which is more than 60%improvement compared to the simple graphene/Ni heterostructure.Then we theoretically design a valley-injection device based on the Cu/graphene/Au/Ni heterostructure and demonstrate that the valley injection can be easily switched solely by changing the magnetization direction of Ni,which can be used to generate and control the valley-polarized current.展开更多
文摘Starting from the transformation and upgrading of traditional culture,the optimization and development of traditional industries,and the innovation of traditional models,this paper used cultural entrepreneurship to trigger the thematic business engine,and explored Zhucheng City with its unique dinosaur culture.It proposed"Three-integration"rolling development mode to build Zhucheng into a new highland of cultural entrepreneurship and create new competitiveness under the background of agricultural and rural modernization development.This paper also explored from the perspective of multi-subject collaboration of cultural entrepreneurship.Government needs to establish rolling development pilot projects and promote their application;enterprises need to play the engine role of thematic business through the mode of"getting larger to help smaller ones";the masses need to pay attention to the reaction of culture to the economy,so as to promote the wave of high-level promotion of cultural inheritance and urban-rural integration.
基金Project supported by the National Key R&D Program of China(Grant No.2017YFF0206104)the National Natural Science Foundation of China(Grant No.51871018)+1 种基金Beijing Laboratory of Metallic Materials and Processing for Modern Transportation,the Opening Project of Key Laboratory of Microelec-tronics Devices&Integrated Technology,Institute of Microelectronics of Chinese Academy of Sciences,Beijing Natural Science Foundation,China(Grant No.Z180014)Beijing Outstanding Young Scientists Projects,China(Grant No.BJJWZYJH01201910005018).We gratefully acknowledge the Chinese Academy of Sciences for providing computation facilities.
文摘The valley splitting has been realized in the graphene/Ni heterostructure with the splitting value of 14 meV,and the obtained valley injecting efficiency from the heterostructure into graphene was 6.18%[Phys.Rev.B 92115404(2015)].In this paper,we report a way to improve the valley splitting and the valley injecting efficiency of the graphene/Ni heterostructure.By intercalating an Au monolayer between the graphene and the Ni,the split can be increased up to 50 meV.However,the valley injecting efficiency is not improved because the splitted valley area of graphene moves away from the Fermi level.Then,we mend the deviation by covering a monolayer of Cu on the graphene.As a result,the valley injecting efficiency of the Cu/graphene/Au/Ni heterostructure reaches 10%,which is more than 60%improvement compared to the simple graphene/Ni heterostructure.Then we theoretically design a valley-injection device based on the Cu/graphene/Au/Ni heterostructure and demonstrate that the valley injection can be easily switched solely by changing the magnetization direction of Ni,which can be used to generate and control the valley-polarized current.
