magneto-optical Kerr effect
E446003
The magneto-optical Kerr effect is a phenomenon in which the polarization and intensity of light reflected from a magnetized material are altered in a way that depends on the material’s magnetization.
All labels observed (1)
| Label | Occurrences |
|---|---|
| magneto-optical Kerr effect canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4485703 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: magneto-optical Kerr effect Context triple: [Faraday effect, relatedTo, magneto-optical Kerr effect]
-
A.
Shubnikov–de Haas effect
The Shubnikov–de Haas effect is a quantum oscillatory phenomenon in the electrical resistance of conductors and semiconductors subjected to strong magnetic fields at low temperatures, used to probe their electronic structure and Fermi surface.
-
B.
Faraday effect
The Faraday effect is a magneto-optical phenomenon in which the polarization plane of light is rotated as it passes through a material under the influence of a magnetic field aligned with the direction of propagation.
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C.
de Haas–van Alphen effect
The de Haas–van Alphen effect is a quantum oscillatory phenomenon in metals where the magnetization varies periodically with applied magnetic field, allowing precise mapping of the electronic structure and Fermi surface.
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D.
Lifshitz–Kosevich formula
The Lifshitz–Kosevich formula is a key theoretical expression in solid-state physics that describes how the amplitude of quantum oscillations in metals depends on temperature, magnetic field, and electronic properties.
-
E.
Zeeman effect
The Zeeman effect is the splitting of atomic or molecular spectral lines into multiple components when subjected to an external magnetic field, revealing information about energy levels and magnetic moments.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: magneto-optical Kerr effect Target entity description: The magneto-optical Kerr effect is a phenomenon in which the polarization and intensity of light reflected from a magnetized material are altered in a way that depends on the material’s magnetization.
-
A.
Shubnikov–de Haas effect
The Shubnikov–de Haas effect is a quantum oscillatory phenomenon in the electrical resistance of conductors and semiconductors subjected to strong magnetic fields at low temperatures, used to probe their electronic structure and Fermi surface.
-
B.
Faraday effect
The Faraday effect is a magneto-optical phenomenon in which the polarization plane of light is rotated as it passes through a material under the influence of a magnetic field aligned with the direction of propagation.
-
C.
de Haas–van Alphen effect
The de Haas–van Alphen effect is a quantum oscillatory phenomenon in metals where the magnetization varies periodically with applied magnetic field, allowing precise mapping of the electronic structure and Fermi surface.
-
D.
Lifshitz–Kosevich formula
The Lifshitz–Kosevich formula is a key theoretical expression in solid-state physics that describes how the amplitude of quantum oscillations in metals depends on temperature, magnetic field, and electronic properties.
-
E.
Zeeman effect
The Zeeman effect is the splitting of atomic or molecular spectral lines into multiple components when subjected to an external magnetic field, revealing information about energy levels and magnetic moments.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
magneto-optical effect
ⓘ
optical Kerr effect ⓘ physical phenomenon ⓘ |
| affects |
intensity of reflected light
ⓘ
polarization of reflected light ⓘ |
| canBeMeasuredBy |
Kerr ellipticity
ⓘ
Kerr rotation angle ⓘ |
| dependsOn |
angle of incidence
ⓘ
complex off-diagonal elements of the dielectric tensor ⓘ direction of magnetization ⓘ magnetization of the material ⓘ optical constants of the material ⓘ wavelength of incident light ⓘ |
| differsFrom | Faraday effect NERFINISHED ⓘ |
| discoveredIn | 19th century ⓘ |
| enables |
time-resolved magneto-optical Kerr spectroscopy
ⓘ
ultrafast magnetization dynamics studies ⓘ |
| field |
condensed matter physics
ⓘ
magneto-optics ⓘ solid-state physics ⓘ |
| geometryDependsOn |
orientation of magnetization relative to plane of incidence
ⓘ
orientation of magnetization relative to surface normal ⓘ |
| hasVariant |
longitudinal magneto-optical Kerr effect
NERFINISHED
ⓘ
polar magneto-optical Kerr effect ⓘ transverse magneto-optical Kerr effect NERFINISHED ⓘ |
| involves |
change of ellipticity
ⓘ
rotation of polarization plane ⓘ |
| isDescribedBy |
complex Kerr angle
ⓘ
magneto-optical dielectric tensor ⓘ |
| isEnhancedBy |
optical cavity structures
ⓘ
surface plasmon resonances ⓘ |
| isNamedAfter | John Kerr NERFINISHED ⓘ |
| isObservedIn |
ferrimagnetic materials
ⓘ
ferromagnetic materials ⓘ magnetic multilayers ⓘ magnetic semiconductors ⓘ magnetized media ⓘ thin magnetic films ⓘ |
| occursAt | reflection of light ⓘ |
| relatedTo | Faraday effect NERFINISHED ⓘ |
| requires |
incident polarized light
ⓘ
magnetized material ⓘ |
| usedFor |
characterization of thin magnetic films
ⓘ
hysteresis loop measurements ⓘ magnetic domain imaging ⓘ magnetization measurements ⓘ magneto-optical data storage ⓘ non-contact magnetic sensing ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: magneto-optical Kerr effect Description of subject: The magneto-optical Kerr effect is a phenomenon in which the polarization and intensity of light reflected from a magnetized material are altered in a way that depends on the material’s magnetization.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.