Negative magnetodielectric effect in CaCu₃Ti₄O₁₂
Real part of complex relative dielectric value is relatively decreased as large as ∼5 % from 50 K to 200 K in CaCu₃Ti₄O₁₂, by applying a 6-T static magnetic field. CaCu₃Ti₄O₁₂ is thus implied primarily by the negative magnetodielectric effect, as a unified dielectric system in which 1-D finite dipole chains of B-site titanium ions, coexist with a collective of polaron-like 3d-electrons of A-site copper ions: the dipole chains are thermally activated for lattice ionic polarization above 50 K,...[Show more]
|Collections||ANU Research Publications|
|Source:||Journal of Applied Physics|
|01_Chen_Negative_magnetodielectric_2013.pdf||Published Version||1.35 MB||Adobe PDF|
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