Bloch wall
E1020352
A Bloch wall is a type of magnetic domain wall in ferromagnets where the magnetization rotates within the plane of the wall as it transitions between oppositely aligned domains.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bloch wall canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13031871 — 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: Bloch wall Context triple: [Néel wall, contrastsWith, Bloch wall]
-
A.
Néel wall
A Néel wall is a type of magnetic domain wall in thin ferromagnetic films where the magnetization rotates within the plane of the material, minimizing stray magnetic fields.
-
B.
Peierls–Nabarro model
The Peierls–Nabarro model is a theoretical framework in solid-state physics that describes the behavior and motion of dislocations in crystal lattices by accounting for the periodic atomic potential.
-
C.
Landau–Peierls instability
Landau–Peierls instability is a theoretical prediction in condensed matter physics that shows how long-wavelength thermal fluctuations destroy true long-range positional order in low-dimensional crystalline systems.
-
D.
Parisi–Sourlas mechanism
The Parisi–Sourlas mechanism is a theoretical physics concept showing how certain stochastic systems in higher dimensions can be mapped to supersymmetric field theories in lower dimensions, revealing hidden supersymmetry and dimensional reduction.
-
E.
Brillouin zone
The Brillouin zone is the fundamental region of reciprocal space in a crystal lattice, defining the allowed wavevectors for electrons and underpinning the structure of electronic band diagrams.
- 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: Bloch wall Target entity description: A Bloch wall is a type of magnetic domain wall in ferromagnets where the magnetization rotates within the plane of the wall as it transitions between oppositely aligned domains.
-
A.
Néel wall
A Néel wall is a type of magnetic domain wall in thin ferromagnetic films where the magnetization rotates within the plane of the material, minimizing stray magnetic fields.
-
B.
Peierls–Nabarro model
The Peierls–Nabarro model is a theoretical framework in solid-state physics that describes the behavior and motion of dislocations in crystal lattices by accounting for the periodic atomic potential.
-
C.
Landau–Peierls instability
Landau–Peierls instability is a theoretical prediction in condensed matter physics that shows how long-wavelength thermal fluctuations destroy true long-range positional order in low-dimensional crystalline systems.
-
D.
Parisi–Sourlas mechanism
The Parisi–Sourlas mechanism is a theoretical physics concept showing how certain stochastic systems in higher dimensions can be mapped to supersymmetric field theories in lower dimensions, revealing hidden supersymmetry and dimensional reduction.
-
E.
Brillouin zone
The Brillouin zone is the fundamental region of reciprocal space in a crystal lattice, defining the allowed wavevectors for electrons and underpinning the structure of electronic band diagrams.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
magnetic domain wall
ⓘ
transition region in ferromagnets ⓘ |
| appearsIn |
classical micromagnetics textbooks
ⓘ
theory of ferromagnetism ⓘ |
| canBePinnedBy |
grain boundaries
ⓘ
impurities ⓘ material defects ⓘ |
| canBeTransformedInto | Néel wall under reduced thickness or strong surface effects ⓘ |
| dependsOn |
exchange stiffness
ⓘ
magnetocrystalline anisotropy ⓘ saturation magnetization ⓘ |
| differsFrom | Néel wall by magnetization rotation plane ⓘ |
| hasApproximateThickness | proportional to square root of exchange stiffness over anisotropy constant ⓘ |
| hasDynamicBehavior |
domain wall motion under applied field
ⓘ
precessional motion of magnetization ⓘ |
| hasEnergyContribution |
anisotropy energy
ⓘ
exchange energy ⓘ magnetostatic energy ⓘ |
| hasOrientation | wall normal perpendicular to easy magnetization directions in simple cases ⓘ |
| hasPhysicalQuantity |
wall energy density
ⓘ
wall thickness ⓘ |
| hasProperty |
continuous rotation of magnetization vector
ⓘ
finite wall width ⓘ magnetization direction varies with position ⓘ magnetization is nearly constant in magnitude ⓘ magnetization rotates parallel to the wall plane ⓘ magnetization rotates within the plane of the wall ⓘ magnetization rotation angle of 180 degrees between domains ⓘ minimizes exchange and anisotropy energy ⓘ |
| isDescribedBy | micromagnetic theory ⓘ |
| isDifferentFrom | Néel wall ⓘ |
| isFavoredIn | bulk ferromagnets ⓘ |
| isLessFavoredIn | very thin ferromagnetic films ⓘ |
| isManipulatedBy |
external magnetic fields
ⓘ
magnetic anisotropy engineering ⓘ spin-polarized electric currents ⓘ |
| isObservedBy |
Kerr microscopy
ⓘ
Lorentz transmission electron microscopy ⓘ magnetic force microscopy ⓘ |
| isRelevantTo |
coercivity of ferromagnets
ⓘ
magnetic hysteresis ⓘ magnetic recording technology ⓘ spintronics ⓘ |
| isSolutionOf |
Landau–Lifshitz equations in one dimension
ⓘ
linked to:
Landau–Lifshitz equations
|
| isUsedAs | model system for studying domain wall dynamics ⓘ |
| namedAfter | Felix Bloch ⓘ |
| occursIn |
ferromagnetic materials
ⓘ
magnetic domains ⓘ |
| separates | oppositely magnetized domains ⓘ |
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: Bloch wall Description of subject: A Bloch wall is a type of magnetic domain wall in ferromagnets where the magnetization rotates within the plane of the wall as it transitions between oppositely aligned domains.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.