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      Magnons and magnetic fluctuations in atomically thin MnBi2Te4 

      Lujan, David; Choe, Jeongheon; Rodriguez-Vega, Martin; Ye, Zhipeng; Leonardo Liceranzu, Aritz; Nunley, T. Nathan; Chang, Liang-Juan; Lee, Shang-Fan; Yan, Jiaqiang; Fiete, Gregory A.; He, Rui; Li, Xiaoqin (Nature, 2022-05-09)
      MnBi2Te4, referred to as MBT, is a van der Waals material combining topological electron bands with magnetic order. Here, Lujan et al study collective spin excitations in MBT, and show that magnetic fluctuations increase ...
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      Nanometer-Scale Lateral p–n Junctions in Graphene/α-RuCl3 Heterostructures 

      Rizzo, Daniel J.; Shabani, Sara; Jessen, Bjarke S.; Zhang, Jin; McLeod, Alexander S.; Rubio Verdú, Carmen; Ruta, Francesco L.; Cothrine, Matthew; Yan, Jiaqiang; Mandrus, David G.; Nagler, Stephen E.; Rubio Secades, Angel; Hone, James; Dean, Cory R.; Pasupathy, Abhay N.; Basov, Dmitri N. (American Chemical Society, 2022)
      [EN] The ability to create nanometer-scale lateral p-n junctions is essential for the next generation of two-dimensional (2D) devices. Using the charge-transfer heterostructure graphene/alpha-RuCl3, we realize nanoscale ...