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Precisely controlling the twist angle of epitaxial MoS2/graphene heterostructure by AFM tip manipulation 下载免费PDF全文
Jiahao Yuan 《中国物理 B》2022,31(8):87302-087302
Two-dimensional (2D) moiré materials have attracted a lot of attention and opened a new research frontier of twistronics due to their novel physical properties. Although great progress has been achieved, the inability to precisely and reproducibly manipulate the twist angle hinders the further development of twistronics. Here, we demonstrated an atomic force microscope (AFM) tip manipulation method to control the interlayer twist angle of epitaxial MoS2/graphene heterostructure with an ultra-high accuracy better than 0.1°. Furthermore, conductive AFM and spectroscopic characterizations were conducted to show the effects of the twist angle on moiré pattern wavelength, phonons and excitons. Our work provides a technique to precisely control the twist angle of 2D moiré materials, enabling the possibility to establish the phase diagrams of moiré physics with twist angle. 相似文献
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吴帆帆 李璐 徐巧玲 刘乐 袁亚龙 赵交交 黄智恒 昝晓洲 Kenji Watanabe Takashi Taniguchi 时东霞 冼乐德 杨威 杜罗军 张广宇 《中国物理快报》2023,(4):84-93
Moiré superlattices have emerged as a highly controllable quantum platform for exploration of various fascinating phenomena,such as Mott insulator states,ferroelectric order,unconventional superconductivity and orbital ferromagnetism.Although remarkable progress has been achieved,current research in moiré physics has mainly focused on the single species properties,while the coupling between distinct moiré quantum phenomena remains elusive.Here we demonstrate,for the first time,the strong couplin... 相似文献
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