関連する実験動画

Updated: Jul 11, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

シリコン表面の量子状態と原子構造

R M Tromp, R J Hamers, J E Demuth

    Science (New York, N.Y.)
    |October 17, 1986
    PubMed
    まとめ

    スキャニングトンネル顕微鏡は,表面の電子構造と幾何学的構造を同時に研究することを可能にする. この画期的な発見は,シリコン表面と関連するプロセスに関する原子レベルの洞察を提供します.

    さらに関連する動画

    Atomically Traceable Nanostructure Fabrication12:35

    Atomically Traceable Nanostructure Fabrication

    Published on: July 17, 2015

    Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment08:48

    Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment

    Published on: November 9, 2015

    関連する概念動画

    Energy Bands in Solids01:01

    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:
    When atoms are brought close together, as in a solid, these discrete energy levels begin to split due to the overlap of electron orbitals from adjacent atoms. This split occurs because of the Pauli exclusion principle, which states that no two...
    Electronic Structure of Atoms02:28

    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 numbers:  n, l, ml, and...
    Structures of Solids02:22

    Structures of Solids

    Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
    Types of Semiconductors01:20

    Types of Semiconductors

    Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
    Atomic Nuclei: Nuclear Spin State Overview01:03

    Atomic Nuclei: Nuclear Spin State Overview

    NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...
    Lewis Structures of Molecular Compounds and Polyatomic Ions02:54

    Lewis Structures of Molecular Compounds and Polyatomic Ions

    To draw Lewis structures for complicated molecules and molecular ions, it is helpful to follow a step-by-step procedure as outlined: