Question
Explain the phenomena of Colossal Magnetoresistance (CMR) and Giant Magnetoresistance (GMR). Give examples of materials where these effects are observed.
Answer :
Word Count : 240
Colossal Magnetoresistance (CMR) and Giant Magnetoresistance (GMR) are two important magnetotransport phenomena in materials science, both describing large changes in electrical resistance under applied magnetic fields. CMR is observed mainly in mixed-valence manganites such as La₁₋ₓCaₓMnO₃ and La₁₋ₓSrₓMnO₃. These perovskite _________ ____ _______ __________ _________ ____ ___ ___ _________ ________.
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Colossal Magnetoresistance (CMR) and Giant Magnetoresistance (GMR) are two important magnetotransport phenomena in materials science, both describing large changes in electrical resistance under applied magnetic fields. CMR is observed mainly in mixed-valence manganites such as La₁₋ₓCaₓMnO₃ and La₁₋ₓSrₓMnO₃. These perovskite _________ ____ _______ __________ _________ ____ ___ ___ _________ ________.
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