2019/08/16 by Rudra Prasad Jena, Devendra Kumar, Jena, Rudra Prasad +3
Materials Science · Physics and Astronomy · #Chemical and Physical Properties of Materials #FOS: Physical sciences #Heusler alloys: electronic and magnetic properties #Hydrogen Storage and Materials #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci) #Metallurgical and Alloy Processes
paper · pdf · doi:10.48550/arxiv.1908.05974
openalex publication_date 2019/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A comprehensive magnetotransport study including resistivity (ρxx) at various fields, isothermal magnetoresistance and Hall resistivity (ρxy) has been carried out at different temperatures on the Co2TiAl Heusler alloy. Co2TiAl alloy shows a paramagnetic (PM) to ferromagnetic (FM) transition below the curie temperature (TC) ∼ 125 K. In the FM region, resistivity and magnetoresistance reveals a spin flip electron-magnon scattering and the Hall resistivity unveils the anomalous Hall resistivity (ρxyAH). Scaling of anomalous Hall resistivity with resistivity establishes the extrinsic scattering process responsible for the anomalous hall resistivity; however Skew scattering is the dominant mechanism compared to the side-jump contribution. A one to one correspondence between magnetoresistance and side-jump contribution to anomalous Hall resistivity verifies the electron-magnon scattering being the source of side-jump contribution to the anomalous hall resistivity.