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.
The rapid advancement of technologies like artificial intelligence (AI) and the Internet of Things (IoT) has heightened the demand for high-speed, energy-efficient memory devices. Traditional memory technologies often struggle ...
Condensed Matter
Feb 10, 2025
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An international research team has synthesized a multilayered two-dimensional polyaniline (2DPANI) crystal, achieving unique metallic out-of-plane charge transport and high conductivity. This study was published in Nature.
Nanomaterials
Feb 6, 2025
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Quantum spin liquids (QSLs) are fascinating and mysterious states of matter that have intrigued scientists for decades. First proposed by Nobel laureate Philip Anderson in the 1970s, these materials break the conventional ...
Condensed Matter
Feb 5, 2025
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Nanoelectronics deal with extremely small electronic components—transistors, sensors and circuits that can fit on the tip of a needle. This technology powers our everyday lives through devices such as computers, smartphones ...
Nanophysics
Jan 23, 2025
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Researchers from the University of British Columbia, the University of Washington, and Johns Hopkins University have identified a new class of quantum states in a custom-engineered graphene structure.
Nanophysics
Jan 22, 2025
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A research team discovered a quantum state in which electrons move in a completely new way under a twisted graphene structure. The unique electronic state is expected to contribute to the development of more efficient and ...
Quantum Physics
Jan 21, 2025
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In a remarkable feat of chemistry, a Northwestern University-led research team has developed the first two-dimensional (2D) mechanically interlocked material.
Nanomaterials
Jan 16, 2025
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Imagine standing by a lake and throwing a stone into the water. Waves spread out in circular patterns and can reflect at obstacles and boundaries. Researchers at the University of Regensburg, in collaboration with colleagues ...
Nanophysics
Jan 16, 2025
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Würzburg chemists have succeeded in controlling the passage of halide ions by deliberately introducing defects into a two-layer nanographene system. Their results have been published in Nature. The paper shows new perspectives ...
Nanomaterials
Jan 15, 2025
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Researchers have chemically linked 2D materials using a molecular "velcro," resulting in a device with improved optoelectronic properties. The device, made of palladium nanosheets covalently bonded with MoS2, shows an enhanced ...
Nanophysics
Jan 13, 2025
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