ferroelectric
C2Technical/Scientific
Definition
Meaning
A material that can have a spontaneous electric polarization, analogous to ferromagnetism, which can be reversed by an external electric field.
Pertaining to or characteristic of a ferroelectric material; exhibiting ferroelectricity. In extended use, sometimes describes devices or systems (e.g., memories, capacitors) utilizing such materials.
Linguistics
Semantic Notes
This is a highly technical term from solid-state physics and materials science. It is a compound of 'ferro-' (from Latin 'ferrum' for iron, but here used by analogy to ferromagnetism) and 'electric'. The term describes a property, not the presence of iron.
Dialectal Variation
British vs American Usage
Differences
No significant semantic or spelling differences. Pronunciation differs slightly (see IPA).
Connotations
Identical technical connotations in both varieties.
Frequency
Used with equal rarity and specificity in technical contexts in both the UK and US.
Vocabulary
Collocations
Grammar
Valency Patterns
[ferroelectric] + noun (material, capacitor)be + [ferroelectric]exhibit [ferroelectric] behavioura [ferroelectric] of + typeVocabulary
Synonyms
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Almost never used. Might appear in high-tech investment reports or patents.
Academic
Common in physics, materials science, and electrical engineering research papers, theses, and lectures.
Everyday
Virtually never used in everyday conversation.
Technical
The primary context. Used in research, development, and specification of electronic components (e.g., memories, sensors).
Examples
By Part of Speech
verb
British English
- The material can be poled to ferroelectric.
- The film was deposited and then annealed to induce it to ferroelectric.
American English
- Researchers aim to dope the compound so it will ferroelectric at room temperature.
- The alloy does not ferroelectric under these conditions.
adverb
British English
- The sample responded ferroelectricly to the applied field.
- The domain walls moved ferroelectricly during switching.
American English
- The material behaves ferroelectricly below its Curie temperature.
- The capacitor is operated ferroelectricly to store data.
adjective
British English
- The ferroelectric hysteresis loop was measured.
- They discovered a novel ferroelectric phase in the crystal.
American English
- The ferroelectric properties degrade with cycling.
- We need a ferroelectric layer for the memory cell.
Examples
By CEFR Level
- Some advanced computer memory chips use ferroelectric materials.
- The scientist explained that ferroelectric crystals can 'remember' an electric field.
- The research focuses on lead zirconate titanate (PZT), a prototypical ferroelectric material with excellent piezoelectric properties.
- Ferroelectric random-access memory (FeRAM) offers non-volatile data storage with low power consumption and high write endurance.
Learning
Memory Aids
Mnemonic
Think of a FERRy that can be switched to go EAST or WEST by an ELECTRIC signal. FERRO-ELECTRIC materials have a polarity that can be switched by an electric field.
Conceptual Metaphor
A FERROELECTRIC MATERIAL IS A SWITCHABLE ELECTRIC COMPASS. Its internal 'electric direction' can be flipped, storing a '0' or '1'.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate as 'железоэлектрический' in a literal sense, as it's unrelated to iron. The standard Russian term is 'сегнетоэлектрический' (from 'сегнетова соль' - Rochelle salt).
- The 'ferro-' prefix is an historical analogy, not a descriptor of composition.
Common Mistakes
- Misspelling as 'fero-electric' or 'ferroelectic'.
- Confusing with 'ferromagnetic' (related to magnetism).
- Assuming the material contains iron (it usually does not).
- Using it as a general synonym for 'piezoelectric' (all ferroelectrics are piezoelectric, but not vice versa).
Practice
Quiz
What is the primary conceptual analogy behind the term 'ferroelectric'?
FAQ
Frequently Asked Questions
No. The prefix 'ferro-' is used by analogy to ferromagnetism (where materials like iron can have permanent magnetization). Most ferroelectric materials contain no iron.
All ferroelectric materials are piezoelectric (generate electric charge under mechanical stress). However, not all piezoelectric materials are ferroelectric. The key difference is that ferroelectrics have a spontaneous, switchable electric polarization, while piezoelectrics only generate polarization in response to stress.
They are used in specific types of non-volatile computer memory (FeRAM), capacitors with high dielectric constants, sensors, actuators, and electro-optic devices.
The Curie temperature (Tc) is the critical temperature above which a ferroelectric material loses its spontaneous polarization and becomes paraelectric (non-ferroelectric).