搜索结果: 1-15 共查到“凝聚态物理学 graphene”相关记录52条 . 查询时间(0.038 秒)
Study: Superconductivity switches on and off in “magic-angle” graphene（图）
超导 “魔角”石墨烯 超导电子产品
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2023/6/8
With some careful twisting and stacking, MIT physicists have revealed a new and exotic property in “magic-angle” graphene: superconductivity that can be turned on and off with an electric pulse, much ...
Physicists discover a “family” of robust, superconducting graphene structures（图）
超导 石墨烯 结构“家族” 超导器件
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2023/6/8
When it comes to graphene, it appears that superconductivity runs in the family.
“Magic-angle” trilayer graphene may be a rare, magnet-proof superconductor（图）
三层石墨烯 防磁超导体 MRI机器 量子计算机
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2023/6/7
MIT physicists have observed signs of a rare type of superconductivity in a material called magic-angle twisted trilayer graphene. In a study appearing today in Nature, the researchers report that the...
Columbia Researchers Observe Exotic Quantum Particle in Bilayer Graphene（图）
Columbia Researchers Exotic Quantum Particle Bilayer Graphene
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2017/10/25
A team led by Cory Dean, assistant professor of physics at Columbia University, and James Hone, Wang Fong-Jen Professor of Mechanical Engineering at Columbia Engineering, has definitively observed an ...
Fluorine grants white graphene new powers
Fluorine grants graphene new powers
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2017/7/25
A little fluorine turns an insulating ceramic known as white graphene into a wide-bandgap semiconductor with magnetic properties. Rice University scientists said that could make the unique material su...
北京大学物理学院在表面等离激元纳米天线新型graphene光电探测器研究取得进展
表面等离激元 纳米天线 graphene 光电探测器
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2012/9/6
原子尺度的碳单层(graphene)结构具有独特的光电转换性质。通过纳米加工制备的光学天线与碳单层构成的复合结构，可以有效地提高光电转换效率。近日，凝聚态所朱星教授团队的方哲宇百人计划研究员和美国Rice大学P. Nordlander, N. Halas教授合作，加工制备了两层碳单层之间的纳米尺度光学天线，这种三明治结构的光电探测器可以有效地用于可见光及近红外区域碳单层光电器件探测，光电流增强效应...
Highly tunable spin-dependent electron transport through carbon atomic chains connecting two zigzag graphene nanoribbons
Highly tunable spin-dependent electron transport carbon atomic chains zigzag graphene nanoribbons
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2012/2/27
Motivated by recent experiments of successfully carving out stable carbon atomic chains from graphene [Meyer et al. Nature (London) 454, 319 (2008); Jin et al. Phys. Rev. Lett. 102, 205501 (2009)] we ...
Effect of charged impurity correlation on transport in monolayer and bilayer graphene
charged impurity correlation transport monolayer bilayer graphene
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2012/2/27
We study both monolayer and bilayer graphene transport properties taking into account the presence of correlations in the spatial distribution of charged impurities. In particular we find that the exp...
Manipulating infrared photons using plasmons in transparent graphene superlattices
Manipulating infrared photons plasmons transparent graphene superlattices
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2012/2/27
Superlattices are artificial periodic nanostructures which can control the flow of electrons. Their operation typically relies on the periodic modulation of the electric potential in the direction of ...
The compressibility of graphene
compressibility graphene monolayer bilayer graphene
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2012/2/27
We present a review of the electronic compressibility of monolayer and bilayer graphene. We focus on describing theoretical calculations of the effects of electron--electron interactions and various t...
Photoconductivity of biased graphene
Photoconductivity biased graphene
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2012/2/27
Graphene is a promising candidate for optoelectronic applications such as photodetectors, terahertz imagers, and plasmonic devices. The origin of photoresponse in graphene junctions has been studied e...
Transport in Graphene Tunnel Junctions
Graphene Tunnel Junctions
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2010/11/25
We present a technique to fabricate tunnel junctions between graphene and Al and Cu, with a Si back gate, as well as a simple theory of tunneling between a metal and graphene.
Novel growth mechanism of epitaxial graphene on metals
Novel growth mechanism metals
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2010/11/25
Graphene, a hexagonal sheet of sp2-bonded carbon atoms, has extraordinary properties which hold immense promise for future nanoelectronic applications. Unfor-tunately, the popular preparation methods ...
Carrier heating and high-order harmonics generation in doped graphene by a strong ac electric field
Carrier heating high-order harmonics generation strong ac electric field
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2010/11/25
The nonlinear response of electrons (holes) in doped graphene on ac pumping is concidered the-
oretically for the frequency region above the energy relaxation rate but below the momentum and
carrier...
Sensory Organ like Response of Zigzag Edge Graphene Nanoribbons
Sensory Organ Zigzag Edge Graphene Nanoribbons
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2010/11/25
Using a continuum Dirac theory, we study the density and spin response of zigzag edge erminated
graphene ribbons subjected to edge potentials and Zeeman fields. Our analytical calculations of the den...