magnetoresistance
Very LowTechnical / Scientific
Definition
Meaning
The change in electrical resistance of a material when subjected to an external magnetic field.
A phenomenon in solid-state physics describing how a material's electrical resistance varies in response to an applied magnetic field. It is the basis for many modern sensors and memory technologies.
Linguistics
Semantic Notes
The term is exclusively used in physics, materials science, and electrical engineering. It is a compound noun formed from 'magneto-' (relating to magnets) and 'resistance' (opposition to electric current).
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning, spelling, or pronunciation. Technical usage is identical.
Connotations
Neutral scientific term with no regional connotations.
Frequency
Equally rare in both dialects, confined to highly technical contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [material] exhibits/possesses a large magnetoresistance.Magnetoresistance in [material] is measured as a function of [parameter].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Rare; only in context of technology companies developing magnetoresistive sensors or hard drive read heads.
Academic
Standard term in physics, materials science, and electrical engineering research papers and textbooks.
Everyday
Virtually never used.
Technical
Core term in spintronics, sensor design, and data storage technology.
Examples
By Part of Speech
adjective
British English
- The magnetoresistive sensor showed high sensitivity.
- They studied the magnetoresistive properties of the thin film.
American English
- The magnetoresistive read head is a key component.
- They fabricated a magnetoresistive random-access memory cell.
Examples
By CEFR Level
- This word is not used at the A2 level.
- Scientists discovered a new material with magnetoresistance.
- The device utilises the principle of magnetoresistance to detect magnetic fields very precisely.
- The research paper focuses on the anomalous magnetoresistance observed in the topological insulator at low temperatures.
Learning
Memory Aids
Mnemonic
Imagine a MAGNET trying to RESIST an electric current, changing its flow. MAGNET-O-RESISTANCE.
Conceptual Metaphor
A 'gatekeeper' whose strictness (resistance) changes when a magnetic 'authority' (field) is present.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'магнитосопротивление'; the standard term is 'магнитосопротивление' (same calque, established) or the descriptive 'зависимость электрического сопротивления от магнитного поля'.
Common Mistakes
- Misspelling as 'magneto-resistance' (hyphen often omitted in modern usage).
- Confusing with 'magnetoresistivity' (an intrinsic material property, while magnetoresistance is the phenomenon/measured value).
Practice
Quiz
In which field is 'magnetoresistance' a key concept?
FAQ
Frequently Asked Questions
Magnetoresistance refers to the phenomenon or the measured change in resistance of a specific device/object. Magnetoresistivity is an intrinsic material property, describing how much the material's resistivity changes per unit magnetic field.
No, it is a highly specialised term used almost exclusively by physicists, materials scientists, and electrical engineers.
GMR stands for Giant Magnetoresistance, a quantum mechanical effect discovered in the late 1980s that earned its discoverers the Nobel Prize and is used in hard drive read heads.
Think of a road (the electrical conductor). When there's no magnet (normal traffic), cars (electrons) flow at a certain rate. When a powerful magnet is placed nearby (like a police checkpoint), it changes the flow of cars, making the road 'harder' or 'easier' to travel (resistance changes).