In physics, 2-dimensional systems are idealized physical systems whose relevant degrees of freedom are confined to a plane or an effectively two-dimensional manifold, such that dynamics and interactions occur predominantly within two spatial dimensions. They exhibit distinct phenomena compared with three-dimensional counterparts, including modified density of states, altered screening and fluctuation behavior, and dimensionality-dependent phase transitions (e.g., Kosterlitz–Thouless transitions mediated by topological defects). Examples include electrons in quantum wells or at interfaces, ultrathin films, and certain spin or lattice models defined on 2D lattices, which serve as fundamental platforms for studying critical phenomena, topological phases, and low-dimensional quantum many-body effects.
When it comes to electrically conductive nanomaterials, graphene—stronger and lighter than steel and more conductive than copper—has been shown to be an excellent choice for a wide range of technologies.
Nanophysics
Nov 7, 2024
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120
Researchers led by Prof. Cunlan Guo at Wuhan University have pioneered a new approach to control the electrical properties of two-dimensional (2D) metal-organic frameworks (MOFs), specifically porphyrinic 2D MOF nanosheets, ...
Nanophysics
Nov 7, 2024
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36
Moiré materials, such as twisted bilayer graphene, are materials generally formed by stacking two or more layers of 2D materials on top of each other with a small lattice mismatch. This slight mismatch creates a unique pattern ...
The Korea Research Institute of Standards and Science (KRISS) has, for the first time in the world, generated and controlled skyrmions at room temperature in two-dimensional (2D) materials. This achievement reduces power ...
Condensed Matter
Nov 6, 2024
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86
Graphene is a simple material containing only a single layer of carbon atoms, but when two sheets of it are stacked together and offset at a slight angle, this twisted bilayer material produces numerous intriguing effects, ...
Condensed Matter
Nov 4, 2024
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121
University of Nebraska–Lincoln materials scientists are exploring the physical properties of MXenes, a fast-growing family of two-dimensional materials with the potential for many nanotechnology applications.
Nanomaterials
Oct 28, 2024
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28
Researchers from Queen Mary University of London and Paragraf Limited have demonstrated a significant step forward in the development of graphene-based memristors and unlocking their potential for use in future computing ...
Nanophysics
Oct 24, 2024
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233
An international research team led by NYU Tandon School of Engineering and KAIST (Korea Advanced Institute of Science and Technology) has pioneered a new technique to identify and characterize atomic-scale defects in hexagonal ...
Nanomaterials
Oct 22, 2024
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66
Polaritons are coupled excitations of electromagnetic waves with either charged particles or vibrations in the atomic lattice of a given material. They are widely used in nanophotonics because of their ability to confine ...
Nanophysics
Oct 22, 2024
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26
Researchers at Nagoya University in Japan have addressed a significant challenge in nanosheet technology. Their innovative approach employs surfactants to produce amorphous nanosheets from various materials, including difficult-to-synthesize ...
Nanomaterials
Oct 21, 2024
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