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Ferromagnetism in van der Waals compound $MnS b_{1.8} B i_{0.2} T e_{4}$

https://doi.org/10.1103/PhysRevMaterials.4.064411

Chen, Yangyang; Chuang, Ya-Wen; Lee, Seng Huat; Zhu, Yanglin; Honz, Kevin; Guan, Yingdong; Wang, Yu; Wang, Ke; Mao, Zhiqiang; Zhu, Jun; et al (June 2020, Physical Review Materials)

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Atomically thin half-van der Waals metals enabled by confinement heteroepitaxy

https://doi.org/10.1038/s41563-020-0631-x

Briggs, Natalie; Bersch, Brian; Wang, Yuanxi; Jiang, Jue; Koch, Roland J.; Nayir, Nadire; Wang, Ke; Kolmer, Marek; Ko, Wonhee; De La Fuente Duran, Ana; et al (June 2020, Nature Materials)

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Superconducting proximity effect in a transparent van der Waals superconductor-metal junction

https://doi.org/10.1103/PhysRevB.101.195405

Li, Jing; Leng, Han-Bing; Fu, Hailong; Watanabe, Kenji; Taniguchi, Takashi; Liu, Xin; Liu, Chao-Xing; Zhu, Jun (May 2020, Physical Review B)

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Spin relaxation in fluorinated single and bilayer graphene

https://doi.org/10.1103/PhysRevB.100.035421

Wellnhofer, Susanne; Stabile, Adam; Kochan, Denis; Gmitra, Martin; Chuang, Ya-Wen; Zhu, Jun; Fabian, Jaroslav (July 2019, Physical Review B)

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Metallic Phase and Temperature Dependence of the $ν = 0$ Quantum Hall State in Bilayer Graphene

https://doi.org/10.1103/PhysRevLett.122.097701

Li, Jing; Fu, Hailong; Yin, Zhenxi; Watanabe, Kenji; Taniguchi, Takashi; Zhu, Jun (March 2019, Physical Review Letters)
A valley valve and electron beam splitter

https://doi.org/10.1126/science.aao5989

Li, Jing; Zhang, Rui-Xing; Yin, Zhenxi; Zhang, Jianxiao; Watanabe, Kenji; Taniguchi, Takashi; Liu, Chaoxing; Zhu, Jun (December 2018, Science)

Developing alternative paradigms of electronics beyond silicon technology requires the exploration of fundamentally new physical mechanisms, such as the valley-specific phenomena in hexagonal two-dimensional materials. We realize ballistic valley Hall kink states in bilayer graphene and demonstrate gate-controlled current transmission in a four-kink router device. The operations of a waveguide, a valve, and a tunable electron beam splitter are demonstrated. The valley valve exploits the valley-momentum locking of the kink states and reaches an on/off ratio of 8 at zero magnetic field. A magnetic field enables a full-range tunable coherent beam splitter. These results pave a path to building a scalable, coherent quantum transportation network based on the kink states.
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