Magnetic field driven dielectric relaxation in non-magnetic composite medium: A low temperature study
نویسندگان
چکیده
The frequency dependence of dielectric constant for composites polyaniline (PANI) and multi-walled carbon nanotube (MWCNT) with different degree functionalization is studied at low temperature (down to 4.2 K) magnetic field (up 3 T) applied both in parallel perpendicular direction ac electric field. A relaxation phenomenon observed all the MWCNT/PANI by applying directions, below 103 Hz. However, PANI does not show any peak either direction. depend on strength but it varies MWCNT composites. This occurs due inhomogeneity medium two highly mismatched conductive materials temperatures. results are explained light Parish Littlewood theory about magnetocapacitance nonmagnetic composite.
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ژورنال
عنوان ژورنال: Materials Chemistry and Physics
سال: 2022
ISSN: ['0254-0584', '1879-3312']
DOI: https://doi.org/10.1016/j.matchemphys.2022.126486