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相关概念视频

Network Covalent Solids02:18

Network Covalent Solids

13.4K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
13.4K
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

47.0K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
47.0K
Superconductor01:24

Superconductor

1.1K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
1.1K
Types Of Superconductors01:28

Types Of Superconductors

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A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
972
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

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sp3d and sp3d 2 Hybridization
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VSEPR Theory and the Effect of Lone Pairs04:01

VSEPR Theory and the Effect of Lone Pairs

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Effect of Lone Pairs of Electrons on Molecule Geometry
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相关实验视频

Updated: Jun 26, 2025

Fabricating van der Waals Heterostructures with Precise Rotational Alignment
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超硬和超导双层玻烯 超硬和超导双层玻烯

Chengyong Zhong1, Minglei Sun2, Tariq Altalhi3

  • 1College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, China.

Materials (Basel, Switzerland)
|May 11, 2024
PubMed
概括

比莱尔-δ6烯表现出显著的机械强度和高达20K的超导性.施加的应变可以将其临界温度提高到46K,这是二维元素材料的记录.

关键词:
不同类型的超导性超导性.两个层的烯二烯.电子音声合器的合第一个原则是计算计算.应变效应是一种应变效应.超级硬的 超级硬的

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Exfoliation and Analysis of Large-area, Air-Sensitive Two-Dimensional Materials
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Exfoliation and Analysis of Large-area, Air-Sensitive Two-Dimensional Materials

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Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
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科学领域:

  • 材料科学 材料科学 材料科学
  • 凝聚物质物理学 凝聚物质物理学
  • 固态化学 固态化学

背景情况:

  • 二维 (2D) 超导体,特别是烯等共价金属,对于基本物理和应用至关重要.
  • 比莱尔烯由于其增强的稳定性和可调节性质而成为一个有前途的材料.

研究的目的:

  • 为了研究双层-δ6烯的机械和超导特性.
  • 为了探索施加的应变对其超导的临界温度的影响.

主要方法:

  • 使用第一原则计算来建模材料的特性.
  • 不同类型的米格达尔-埃利亚什伯格理论被用来分析超导.

主要成果:

  • 比拉耶-δ6烯表现出卓越的机械性能,其2D-Young的模量达到570N/m.
  • 该材料具有超导性,临界温度约为20K.
  • 施加应变显著提高了临界温度~46K,这是2D元素材料中记录的最高温度.

结论:

  • 双层-δ6烯中的共价键和金属键的独特组合产生了卓越的机械和超导性能.
  • 这种材料有可能用于先进的电子应用,特别是超导.