Two-dimensional materials 9 History of engineering and technology 7 Technology: general issues 7 2D materials 4 Physics 4 two-dimensional materials 4 Research & information: general 3 Selenium compounds 3 Van der Waals forces 3 density functional theory 3 2d material 2 Density functional theory 2 Graphene 2 Materials science 2 Monolayers 2 Property 2 Spin dynamics 2 Tantalum compounds 2 Transition metals 2 Two-dimensional 2 Van der Waal 2 finite-length nanoribbons 2 nanodiscs 2 room temperature 2 zero-energy states 2 zigzag trigonal nanodiscs 2 2-DIMENSIONAL SNS2 1 2D materials database 1 2d material database 1 AG 1