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Updated: Jul 10, 2025

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
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Published on: December 5, 2015

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探索单层SMSiN2 (M = Mo,W) 的电子和谷特性:对二维Janus材料的第一原则研究

Lijie Geng1,2, Kun Chen1,2, Hongyan Lu3

  • 1School of Electronics and Information, Zhengzhou University of Light Industry, Zhengzhou, China. yyphysics@zzuli.edu.cn.

Physical chemistry chemical physics : PCCP
|November 20, 2023
PubMed
概括

这项研究探讨了单层Janus材料 (SL SMSiN2) 的电子和谷电特征. 磁性兴奋和应变使山谷两极化和可调节带间隙成为可能,为先进的自旋电子设备铺平了道路.

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相关概念视频

Band Theory02:35

Band Theory

When two or more atoms come together to form a molecule, their atomic orbitals combine and molecular orbitals of distinct energies result. In a solid, there are a large number of atoms, and therefore a large number of atomic orbitals that may be combined into molecular orbitals. These groups of molecular orbitals are so closely placed together to form continuous regions of energies, known as the bands.
The energy difference between these bands is known as the band gap.
Conductor, Semiconductor,...
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Metallic Solids02:37

Metallic Solids

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All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
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Energy Bands in Solids

Isolated atoms have discrete energy levels that are well described by the Bohr model. And, it quantifies the energy of an electron in a hydrogen atom as En. Higher quantum numbers 'n' yield less negative, closer electron energy levels.
 Band Formation:
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Molecular and Ionic Solids02:54

Molecular and Ionic Solids

Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
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Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
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Electronic Structure of Atoms


An atom comprises protons and neutrons, which are contained inside the dense, central core called the nucleus, with electrons present around the nucleus. Taking into account the wave–particle duality of electrons and the uncertainty in position around the nucleus, quantum mechanics provides a more accurate model for the atomic structure. It describes atomic orbitals as the regions around the nucleus where electrons of discrete energy exist, characterized by four quantum...
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There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
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