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Curie-Weiss law is applicable to which of the following materials?
- a)Piezoelectric
- b)Ferroelectric
- c)Pyroelectric
- d)Anti-ferroelectric
Correct answer is option 'B'. Can you explain this answer?
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Curie-Weiss law is applicable to which of the following materials?a)Pi...
Answer: b
Explanation: Curie-Weiss law is given by χe = εr -1 = C/(T-θ), where C is the curie constant and θ is the characteristic temperature which is usually a few degrees higher than the curie temperature for ferromagnetic materials.
Explanation: Curie-Weiss law is given by χe = εr -1 = C/(T-θ), where C is the curie constant and θ is the characteristic temperature which is usually a few degrees higher than the curie temperature for ferromagnetic materials.
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Curie-Weiss law is applicable to which of the following materials?a)Pi...
Curie-Weiss Law Overview
The Curie-Weiss law describes the magnetic susceptibility of ferromagnetic and ferroelectric materials near their phase transition temperature, known as the Curie temperature. It provides insight into how these materials respond to external magnetic or electric fields.
Applicability to Ferroelectric Materials
The Curie-Weiss law is specifically applicable to ferroelectric materials due to the following reasons:
Comparison with Other Materials
- Piezoelectric: While piezoelectric materials can exhibit ferroelectric properties, they do not inherently follow the Curie-Weiss law as they do not necessarily undergo a phase transition.
- Pyroelectric: Pyroelectric materials generate an electric charge with temperature changes but do not fit the Curie-Weiss model.
- Anti-ferroelectric: Anti-ferroelectric materials exhibit different polarization characteristics and are not governed by the Curie-Weiss law.
In summary, the Curie-Weiss law is particularly relevant for ferroelectric materials due to their unique properties and behaviors near the Curie temperature, making them distinct from the other material types listed.
The Curie-Weiss law describes the magnetic susceptibility of ferromagnetic and ferroelectric materials near their phase transition temperature, known as the Curie temperature. It provides insight into how these materials respond to external magnetic or electric fields.
Applicability to Ferroelectric Materials
The Curie-Weiss law is specifically applicable to ferroelectric materials due to the following reasons:
- Spontaneous Polarization: Ferroelectric materials exhibit spontaneous polarization below the Curie temperature, making them responsive to electric fields.
- Phase Transition: As temperature approaches the Curie point, ferroelectric materials undergo a phase transition that significantly alters their dielectric properties.
- Temperature Dependence: The susceptibility of ferroelectric materials follows a relationship defined by the Curie-Weiss law, where susceptibility increases as the temperature approaches the Curie temperature.
- Domain Structure: The presence of domains in ferroelectrics contributes to their ability to retain polarization, and this behavior is well described by the Curie-Weiss relation.
Comparison with Other Materials
- Piezoelectric: While piezoelectric materials can exhibit ferroelectric properties, they do not inherently follow the Curie-Weiss law as they do not necessarily undergo a phase transition.
- Pyroelectric: Pyroelectric materials generate an electric charge with temperature changes but do not fit the Curie-Weiss model.
- Anti-ferroelectric: Anti-ferroelectric materials exhibit different polarization characteristics and are not governed by the Curie-Weiss law.
In summary, the Curie-Weiss law is particularly relevant for ferroelectric materials due to their unique properties and behaviors near the Curie temperature, making them distinct from the other material types listed.
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Curie-Weiss law is applicable to which of the following materials?a)Piezoelectricb)Ferroelectricc)Pyroelectricd)Anti-ferroelectricCorrect answer is option 'B'. Can you explain this answer?
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