We have found large positive magneto-resistance in a system that is showing ferromagnetic ordering. What is the possible reason behind it?
Dear Mohd Alam this is the fact that I know:
The evolution of electronic transport under the influence of a magnetic field in normal metals can be understood by the behaviour of the transverse magnetoresistance ρxx(Hz), which evolves quadratically with a small magnetic field H [1], saturating at high fields if the hole and electron densities are not compensated.
The asymptotic behaviour in the low-field limit of ωcτ
Dear Mohd Alam,
As the ferromagnetic Materials can be aligned with a comparatively easy way along the direction of applied Magnetic field, when the electric current starts flowing through a ferromagnet , the Magnetic field generated due to the current will be in such a direction that the magnet dipoles will be aligned and create a Magnetic field which opposes the further increase in current.
Basically, that is nothing but a resistive effect against current. Means - Msgnetoresistance.
If there is anything wrong in my Discussion, dear colleagues, please rectify me.
Thanks and Regards
N Das
Dear Mohd Alam
The positive Magnetoresistance observed at high temperatures (T> Tc). Magnetoresistance can have positive behavior related to both magnetic and structural properties of the Feromagnetic materia
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