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Qué (quién) es hyperfine - definición
Hyperfine structure
In atomic physics, hyperfine structure is defined by small shifts in otherwise degenerate energy levels and the resulting splittings in those energy levels of atoms, molecules, and ions, due to electromagnetic multipole interaction between the nucleus and electron clouds.
electron spin resonance
![''g'' strain]]).](https://commons.wikimedia.org/wiki/Special:FilePath/EPR-bands.svg?width=200 "''g'' strain]]).")
![STM]] in the [[Center for Quantum Nanoscience]] is one of the first STMs globally to measure electron spin resonance on single atoms.](https://commons.wikimedia.org/wiki/Special:FilePath/ESR-STM at QNS in Ewha - front view.jpg?width=200 "STM]] in the [[Center for Quantum Nanoscience]] is one of the first STMs globally to measure electron spin resonance on single atoms.")
TECHNIQUE TO STUDY MATERIALS WITH UNPAIRED ELECTRONS
Electron spin resonance spectroscopy; Electron spin resonance; Electron Paramagnetic Resonance; ESR spectrum; Electron-spin resonance; Electron Spin Resonance; Electron paramagnetic resonance spectroscopy; Immobilized enzyme electron spin resonance; EPR spectroscopy; ESR spectroscopy; Hyperfine coupling constant; Immobilized enzyme ESR
¦ noun Physics a spectroscopic method of locating electrons within the molecules of a paramagnetic substance.
Electron paramagnetic resonance
TECHNIQUE TO STUDY MATERIALS WITH UNPAIRED ELECTRONS
Electron spin resonance spectroscopy; Electron spin resonance; Electron Paramagnetic Resonance; ESR spectrum; Electron-spin resonance; Electron Spin Resonance; Electron paramagnetic resonance spectroscopy; Immobilized enzyme electron spin resonance; EPR spectroscopy; ESR spectroscopy; Hyperfine coupling constant; Immobilized enzyme ESR
Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method for studying materials that have unpaired electrons. The basic concepts of EPR are analogous to those of nuclear magnetic resonance (NMR), but the spins excited are those of the electrons instead of the atomic nuclei.
Ejemplos de uso de hyperfine
1. The mineral nano separation film is of great utility value in various fields of the national economy including pharmaceutical and foodstuff industries as it helps selectively separate hyperfine structural substances such as microorganisms and bacteria in edge–cutting science and technology field.
2. They defined a second as "the duration of ',1'2,631,770 cycles of microwave light absorbed or emitted by the hyperfine transition of cesium–133 atoms in their ground state undisturbed by external fields." The first atomic clock, invented in 1'48, used the vibrations of ammonia molecules rather than cesium.