The Fermi energy is a concept in quantum mechanics usually referring to the energy difference between the highest and lowest occupied single-particle states...

electrical properties. The Fermi level does not necessarily correspond to an actual energy level (in an insulator the Fermi level lies in the band gap)...

exclusion principle. A result is the Fermi–Dirac distribution of particles over energy states. It is named after Enrico Fermi and Paul Dirac, each of whom derived...

Enrico Fermi ForMemRS (Italian: [enˈriːko ˈfermi]; 29 September 1901 – 28 November 1954) was an Italian and naturalized American physicist, renowned for...

with half-integer spin. These statistics determine the energy distribution of fermions in a Fermi gas in thermal equilibrium, and is characterized by their...

production of energy. It was established in 1956 by the Atomic Energy Commission in memorial of Italian-American physicist Enrico Fermi and his work in...

A Fermi problem (or Fermi quiz, Fermi question, Fermi estimate), also known as a order-of-magnitude problem (or order-of-magnitude estimate, order estimation)...

crystalline lattice and from the occupation of electronic energy bands. The existence of a Fermi surface is a direct consequence of the Pauli exclusion principle...

used to study gamma-ray bursts and solar flares. Fermi, named for high-energy physics pioneer Enrico Fermi, was launched on 11 June 2008 at 16:05 UTC aboard...

Fermi liquid theory (also known as Landau's Fermi-liquid theory) is a theoretical model of interacting fermions that describes the normal state of the...

The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high likelihood of its...

around, more technically there are no available states at the Fermi energy, the equilibrium energy of electrons. For historical reasons there is a very different...

quantum states ranked by energy is called the Fermi-Dirac distribution.: 30  Degenerate matter exhibits the results of Fermi-Dirac distribution. Unlike...

Planck constant. The Fermi energy defines the energy of the highest energy electron at zero temperature. For metals the Fermi energy is in the order of...

In particle physics, Fermi's interaction (also the Fermi theory of beta decay or the Fermi four-fermion interaction) is an explanation of the beta decay...

The Enrico Fermi Nuclear Generating Station is a nuclear power plant on the shore of Lake Erie near Monroe, in Frenchtown Charter Township, Michigan on...

after contact (bottom). The work function is defined as the energy difference between the Fermi level of the material and the vacuum level before contact...

of absolute zero, which is a consequence of delocalized states at the Fermi energy. Many elements and compounds become metallic under high pressures, for...

lower than the Fermi temperature, about 106 kelvin. The term 'degenerate' here is not related to degenerate energy levels, but to Fermi–Dirac statistics...

Laura Fermi. Olivia Fermi (2014) Laura Fermi's Life from The Fermi Effect Nella Fermi Weiner (1994) Biography of Laura Fermi Guide to the Laura Fermi Papers...

energy gap. In general, electrons will occupy different energy levels following the Fermi-Dirac distribution; for energy levels higher than the Fermi...

A Fermi resonance is the shifting of the energies and intensities of absorption bands in an infrared or Raman spectrum. It is a consequence of quantum-mechanical...

function of the electrons at the energy level of E is presented by a Fermi–Dirac distribution function. In this case the Fermi level is defined as the level...

of a Fermi gas. We thus approximate T by the kinetic energy of an additional electron in the Fermi gas model, which is simply the Fermi energy EF. The...

the spin-split Landau levels move to higher energy. As each energy level passes through the Fermi energy, it depopulates as the electrons become free...

the energy gap is a region of suppressed density of states around the Fermi energy, with the size of the energy gap much smaller than the energy scale...

Thomas–Fermi screening is a theoretical approach to calculate the effects of electric field screening by electrons in a solid. It is a special case of...

where f {\displaystyle f} is the Fermi–Dirac distribution ϵ f {\displaystyle \epsilon _{f}} is the energy of the energy level corresponding to the ground...

physics, Fermi's golden rule is a formula that describes the transition rate (the probability of a transition per unit time) from one energy eigenstate...

band and the Fermi energy depends on the doping. When the two isolated materials are put into intimate contact, the equalization of the Fermi levels brings...