scispace - formally typeset
Search or ask a question

What is Electron diffrectio? 


Best insight from top research papers

Electron diffraction is a method used to obtain crystallographic information about materials. It is similar to X-ray diffraction and neutron diffraction in that it provides information in reciprocal space. However, the interpretation of electron diffraction is based on the dynamical diffraction theory, unlike X-ray and neutron diffraction which follow the kinematical diffraction theory . Electron diffraction can be performed using techniques such as nano-beam electron diffraction and convergent beam electron diffraction, which make use of analytical electron microscopes . The dynamical diffraction effect on electron diffraction is explained in the literature .

Answers from top 5 papers

More filters
Papers (5)Insight
The paper does not mention anything about electron diffraction.
Electron diffraction is a technique used to study the structure of materials by analyzing the scattering of electrons.
Electron diffraction is a phenomenon where electrons are scattered by a crystal lattice, producing a diffraction pattern that can be used to determine the structure of the crystal.
Electron diffraction is a method used to obtain crystallographic information about materials by analyzing the diffraction pattern produced by electrons.
The given information does not mention anything about electron diffraction.

Related Questions

What makes electron?5 answersElectrons are generated by heating a vacuum pyroelectric material, such as Lithium Niobate or Barium Titanate, to a temperature that polarizes the material and generates an electric field at its surface, allowing for the emission of electrons. Another method involves preparing field emitters on a silicon substrate to enhance electron emission, with a thin boron layer to prevent oxidation of the silicon. It is believed that electrons avoid each other in space due to Coulomb repulsion and the Pauli exclusion principle, but there are excited states where electrons choose to be close to each other, exhibiting correlation or anticorrelation patterns. An electron source with a lower work function, narrower energy bandwidth, higher current density, and longer lifespan has been developed using a needle-shaped electrode and a diffusion source made of a mixture of barium composite containing oxygen and carbon particles. Another electron source consists of a substrate and an electron-emitting element with multiple electrode pairs and an electron-emitting region on selected pairs.
What is electron-beam lithography?5 answersElectron-beam lithography is a technique that uses an accelerated electron beam to create patterns on a resist material without the need for complex etching or lift-off processes. It allows for direct writing of patterns on various materials using an all-water process, resulting in satisfactory electronic properties. This method enables the fabrication of diverse on-chip semiconductors, such as metal oxides, sulfides, and nitrides, directly on a silicon wafer. Zinc oxide patterns with a line width of 18 nm and a mobility of 3.94 cm2 V-1 s-1 have been achieved using this etching-free electron beam lithography strategy. Electron beam lithography originated from the principle of the scanning electron microscope and is primarily used in research applications where system resolution and accuracy are crucial. It involves utilizing a focused electron beam to irradiate an electron-sensitive layer and then developing the exposed region using a chilled developer solution, resulting in accurate control of pattern dimensions. Electron beam lithography offers high resolution and pattern flexibility, making it the preferred method for fabricating nanometer-scale structures in low volume.
What are the properties of electrons?5 answersStep 1: Electrons are fermions obeying the Pauli exclusion principle, leading to the formation of a Fermi surface. The behavior of electrons in condensed matter has been crucial for modern technology, especially in semiconductors, where their manipulation and control have revolutionized information technology capabilities. Step 2: - "Over the second half of this century, scientists have made remarkable progress in understanding the properties of electrons in condensed matter. This success has primarily been due to describing the electrons in terms of a collection of states, with each state labelled by its momentum and spin. Electrons are fermions and therefore obey the Pauli exclusion principle, which means that two fermions cannot have the same momentum and spin quantum numbers. The exclusion principle forces electrons to occupy a range of momentum states up to a so-called Fermi surface. In three dimensions the Fermi surface is a sphere."- "The electron has been investigated thoroughly and applied widely since it was discovered by J. J. Thomson in 18971. The motion of electrons as well as their manipulation and control, especially in semiconductors, have been fundamental problems in all modern scientific and technologic endeavor. Devices based on the classical motion of electrons in vacuum tubes via Coulomb and Lorentz forces were developed in the early part of the last century. A revolutionary leap in technology occurred when electron behavior in the solid state environment, especially in semiconductors was understood by laws of quantum mechanics. The effective control of the number and the motion of electrons in a semiconductor solid state environment by manipulating material properties, i.e. energy band structures, dielectric index, effective mass m*, doping etc, as well as manipulating the device structures such as p-n junction, hetero-structures, and all types of nanostructures, has led to the modern information technology capabilities we know today."Step 3: Electrons are fermions obeying the Pauli exclusion principle, leading to the formation of a Fermi surface. The behavior of electrons in condensed matter has been crucial for modern technology, especially in semiconductors, where their manipulation and control have revolutionized information technology capabilities.
What is the difference between optical and electron microscopy?5 answersOptical microscopy and electron microscopy are both imaging techniques used to investigate and characterize materials at the nanoscale. The main difference between the two lies in the type of radiation used for imaging. Optical microscopy uses light to illuminate and magnify specimens, while electron microscopy uses electrons for the same purpose. Optical microscopy often lacks the necessary spatial resolution, while electron microscopy can provide high-resolution images. However, electron microscopy can damage the specimen and cause dose-induced artifacts. To overcome this limitation, Optical Near-field Electron Microscopy (ONEM) has been proposed as a technique that combines non-invasive probing with light and a high-spatial-resolution readout via electron optics. Electron microscopy is versatile and widely used in various scientific fields, including materials science, biology, and life science. It offers high resolution and depth of field, allowing for the imaging of topographical features, morphology, phase distribution, and crystal structure.
What is electrons in atom?5 answersElectrons in an atom are subatomic particles that play a key role in the behavior and interactions of atoms. They are negatively charged and have a very small mass. Electrons are found in energy shells or orbitals around the nucleus of an atom. Each shell can hold a specific number of electrons, with the innermost shell (K-shell) holding 2 electrons and subsequent shells holding more. The behavior of electrons in an atom can be described using quantum theory, which considers the motion of each electron in an effective centrally symmetric field created by the nucleus and other electrons. The interactions between electrons and the nucleus, as well as other electrons, determine the stability and properties of the atom.
Who invented scanning electron microscope?7 answers

See what other people are reading

What is tug if war, tennis, badminton, zumba?
4 answers
How use of holograms in the effects of interior design of hotel furnishings using iot?
5 answers
How use of holograms in the effects of interior design of hotel furnishings using iot?
5 answers
How to compute misfit strain tensor of a solute?
5 answers
What is surface crystallography?
5 answers
What is surface crystallography?
4 answers
What is surface crystallography?
4 answers
How has the concept of background radiation evolved in scientific literature over the past decade?
5 answers
The concept of background radiation has evolved in scientific literature over the past decade to encompass various aspects. Studies have shown that background radiation, originating from scattering processes along beam paths, dominates in inelastic X-ray scattering (IXS) and X-ray emission spectroscopy (XES) experiments. Underground biological experiments have revealed that life can respond to subtle changes in radiation backgrounds, leading to hormetic behavior and inheritable changes in antioxidant regulation. Measurement studies in specific areas have been conducted to quantify background radiation levels and discuss their health effects. Additionally, models for radiation transport in simple geometries have been developed, exploring the impact of background radiation in masking radiation sources and describing various sources of background radiation, including cosmogenic radiation and naturally occurring radioactive material (NORM).
What is the relationship between the interaction of X-rays with matter and the Compton effect?
5 answers
The interaction of X-rays with matter involves various phenomena depending on the energy and nature of the material. X-rays can undergo Compton scattering, where an X-ray photon scatters off an electron, leading to a shift in wavelength. This effect is crucial in probing electron momentum distributions in both gas-phase and condensed-matter samples. Additionally, the sensitivity of X-ray scattering methods is not influenced by the sample's surface quality and increases with decreasing atomic number of impurities, making it valuable for chemical and phase analysis. The classical wave theory quantitatively describes X-ray interactions, linking scattering and absorption through formalisms like the Kramers-Kronig relations. Overall, the Compton effect plays a significant role in understanding X-ray interactions with matter, especially in high-intensity scenarios where ionization effects become prominent.
Why do twins increase the XRD peak width?
4 answers
Twins increase XRD peak width due to fine twinning, as observed in various materials like corundum, YBCO, and hematite. In corundum, XRD peak broadening is solely caused by fine twinning, with different twin domain sizes leading to varying peak widths. Similarly, in YBCO, the twinning associated with phase transitions contributes to hkl-dependent peak broadening, consistent with twinned structures. Additionally, in hematite, systematic peak broadening is observed for reflections specific to twin variants, indicating differences in coherence at twin boundaries affecting peak width. These findings collectively demonstrate that twins introduce structural variations and incoherencies, impacting XRD peak widths by influencing the scattering behavior of X-rays within the crystalline materials.
Why scattering centers occur in phonon band plot?
5 answers
Scattering centers occur in phonon band plots due to various reasons outlined in the provided contexts. Resonant scattering at specific frequencies associated with impurity ions or defects in the crystal leads to sharp features in the phonon current spectrum, providing high-resolution spectroscopic information. At low temperatures, resonant centers become more effective in scattering phonons, impacting heat conductivity and phonon propagation characteristics. Strategies like hierarchical scattering can enhance the figure of merit of thermoelectric materials by intentionally designing scattering centers, as demonstrated in the FeNbSb system. Additionally, the presence of crystal defects, especially complex ones like Jahn-Teller defects, can lead to phonon scattering challenges due to degenerate electronic states. Phonon scattering by systems of electric dipoles interacting with the lattice further contributes to understanding phonon behavior in crystals.