Mössbauer effect
E1042737
The Mössbauer effect is a nuclear physics phenomenon in which atomic nuclei in a solid emit and absorb gamma rays without recoil, enabling extremely precise measurements of energy levels and small interactions such as those from gravity, magnetism, and chemical environments.
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
nuclear physics phenomenon
ⓘ
physical phenomenon ⓘ |
| alsoKnownAs | recoil-free gamma-ray resonance absorption ⓘ |
| applicationDomain |
chemistry
ⓘ
condensed matter physics ⓘ geophysics ⓘ materials science ⓘ planetary science ⓘ |
| discoveredBy | Rudolf Mössbauer NERFINISHED ⓘ |
| discoveryYear | 1957 ⓘ |
| enables |
high-resolution gamma-ray spectroscopy
ⓘ
measurement of hyperfine interactions ⓘ measurement of isomer shifts ⓘ measurement of magnetic hyperfine splitting ⓘ measurement of quadrupole splitting ⓘ precise measurement of nuclear energy levels ⓘ |
| energyResolution | on the order of 10^-8 to 10^-12 of gamma-ray energy ⓘ |
| explainedBy | quantum mechanics ⓘ |
| field |
nuclear physics
ⓘ
solid-state physics ⓘ spectroscopy ⓘ |
| involves |
atomic nuclei
ⓘ
gamma rays ⓘ |
| keyProperty |
recoil-free absorption of gamma rays
ⓘ
recoil-free emission of gamma rays ⓘ |
| measurementPrecision | sub-millimeter per second Doppler shifts ⓘ |
| namedAfter | Rudolf Mössbauer NERFINISHED ⓘ |
| notableExperiment | Pound–Rebka experiment NERFINISHED ⓘ |
| occursIn | solids ⓘ |
| relatedConcept |
Doppler velocity drive
ⓘ
Mössbauer spectroscopy NERFINISHED ⓘ natural linewidth ⓘ recoil energy ⓘ |
| requires |
crystalline or solid lattice
ⓘ
low thermal motion ⓘ |
| spectralFeature |
isomer shift
ⓘ
magnetic hyperfine splitting ⓘ quadrupole splitting ⓘ |
| temperatureDependence | Debye-Waller factor NERFINISHED ⓘ |
| typicalIsotope |
iridium-191
ⓘ
iron-57 NERFINISHED ⓘ tin-119 ⓘ |
| underlies | high-precision tests of gravitational redshift ⓘ |
| usedFor |
measuring gravitational redshift
ⓘ
measuring isomer shifts in iron compounds ⓘ studying chemical environments of nuclei ⓘ studying lattice dynamics ⓘ studying magnetic ordering ⓘ studying oxidation states ⓘ testing general relativity ⓘ |
| usedOn | Mars rovers for mineral analysis ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.