ferrimagnetism
Very LowTechnical/Scientific
Definition
Meaning
A type of magnetism in which magnetic moments of atoms align in opposite directions but are unequal in magnitude, resulting in a net magnetic moment.
The property of certain materials, especially ferrites, that exhibit spontaneous magnetization due to antiparallel alignment of unequal magnetic moments, important in data storage and microwave technology.
Linguistics
Semantic Notes
A specific, narrow term in physics and materials science. Not to be confused with ferromagnetism (parallel alignment) or antiferromagnetism (equal antiparallel alignment).
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling is consistent.
Connotations
Purely technical with no regional connotations.
Frequency
Equally rare in both varieties, confined to specialised scientific contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [material] exhibits ferrimagnetism.Ferrimagnetism is observed in [material].The [property] is a result of ferrimagnetism.Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Academic
Common in physics, materials science, and engineering research papers discussing magnetic materials.
Everyday
Virtually never used in everyday conversation.
Technical
Core term in solid-state physics, materials engineering, and electronics for describing magnetic properties of ferrites.
Examples
By Part of Speech
adjective
British English
- The ferrimagnetic material lost its properties above the Néel temperature.
American English
- The ferrimagnetic properties were crucial for the device's function.
Examples
By CEFR Level
- Some materials show ferrimagnetism, which is different from normal magnetism.
- Ferrimagnetism is important for making certain types of magnets.
- The compound's ferrimagnetism arises from the antiparallel alignment of iron ions on two sublattices.
- Researchers measured the temperature dependence of ferrimagnetism in the synthetic ferrite.
Learning
Memory Aids
Mnemonic
Think 'FERRIte + MAGNETism' – the magnetism specific to ferrite materials where magnetic forces are unequal and opposite.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'ферромагнетизм' (ferromagnetism). The Russian term is 'ферримагнетизм'.
Common Mistakes
- Misspelling as 'feromagnetism' or 'ferrimagnetisim'.
- Using it interchangeably with 'ferromagnetism'.
- Pronouncing it with stress on the first syllable (/ˈfɛrɪ-/).
Practice
Quiz
Ferrimagnetism is most closely associated with which class of materials?
FAQ
Frequently Asked Questions
In ferromagnetism, atomic magnetic moments align parallel, creating a strong net magnetisation. In ferrimagnetism, moments align antiparallel but are unequal, resulting in a weaker net magnetisation.
No, it is a specific property found in certain materials like ferrites and some rare-earth compounds, not in common magnets (which are usually ferromagnetic).
The concept was first explained by the French physicist Louis Néel in 1948, for which he later received the Nobel Prize in Physics.
It is crucial in the manufacture of ferrite cores used in transformers, inductors, and microwave devices like isolators, as these materials are electrical insulators but magnetically active.