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.
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 NERFINISHED ⓘ |
| isFavoredIn | bulk ferromagnets ⓘ |
| isLessFavoredIn | very thin ferromagnetic films ⓘ |
| isManipulatedBy |
external magnetic fields
ⓘ
magnetic anisotropy engineering ⓘ spin-polarized electric currents ⓘ |
| isObservedBy |
Kerr microscopy
NERFINISHED
ⓘ
Lorentz transmission electron microscopy ⓘ magnetic force microscopy ⓘ |
| isRelevantTo |
coercivity of ferromagnets
ⓘ
magnetic hysteresis ⓘ magnetic recording technology ⓘ spintronics ⓘ |
| isSolutionOf | Landau–Lifshitz equations in one dimension NERFINISHED ⓘ |
| isUsedAs | model system for studying domain wall dynamics ⓘ |
| namedAfter | Felix Bloch NERFINISHED ⓘ |
| occursIn |
ferromagnetic materials
ⓘ
magnetic domains ⓘ |
| separates | oppositely magnetized domains ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.