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What are the main contributions to the matrix elements (intensity asymmetries with respect to normal emission) in ARPES?
Is there a theoretical paper on that?
Is there a theoretical paper on that?
Matrix elements in photoemission refer to the coefficients that describe the probability of an electron transitioning from an initial state to a final state during the process of photoemission. These matrix elements are used to calculate the intensity of photoemitted electrons and provide insight into the electronic structure of a material.
Matrix elements in photoemission are typically calculated using quantum mechanical methods, such as density functional theory or many-body perturbation theory. These calculations take into account the electronic structure of the material and the interaction between the photon and the electron.
The value of matrix elements in photoemission can be affected by several factors, including the energy of the incident photon, the electronic structure of the material, and the geometry of the photoemission experiment. Additionally, the spin and momentum of the electron can also impact the matrix elements.
Matrix elements in photoemission provide valuable information about the electronic structure of a material, including the energy and momentum distribution of the electrons. This information can be used to study the properties and behavior of materials, as well as to predict their potential applications in various fields.
Yes, matrix elements in photoemission can be manipulated and controlled through various methods such as changing the incident photon energy or modifying the electronic structure of the material. This allows for precise control over the photoemission process and can provide additional insights into the properties of materials.