7 papers
Angle dependent hysteretic magnetotransport in MnBi2Te4 nanoflakes
Tithiparna Das, Soumik Mukhopadhyay
Controlling magnetic phases in two-dimensional systems, where charge transport is highly sensitive to real-space spin inhomogeneities, is central to understanding emergent magnetic…
Room temperature intrinsic anomalous Hall effect in disordered half-metallic ferromagnetic quaternary Heusler alloy CoRuFeSi
Manikantha Panda, Sonali S. Pradhan, Prabuddha Kant Mishra +6
Quaternary Heusler alloys offer a versatile platform for engineering magnetic and topological transport phenomena through chemical flexibility and tunable disorder. Here, we report…
Chiral orbital current driven topological Hall effect in Mn3Si2Te6
Arnab Das, Soumik Mukhopadhyay
Chiral orbital current (COC) plays a crucial role in governing the magnetization and transport behaviour in the layered ferrimagnetic nodal-line semiconductor Mn3Si2Te6. Here, we o…
Common topological origin of longitudinal and transverse magnetoresistance in Fe3GeTe2
Alapan Bera, Soumik Mukhopadhyay
In this work, we reveal the coexistence and correlation of a topological cusp anomaly in the planar Hall signal and a spin-flip scattering dominated positive longitudinal magnetore…
Tuning the chiral orbital currents in a colossal magnetoresistive nodal line ferrimagnet
Arnab Das, Soumik Mukhopadhyay
The ferrimagnetic nodal-line semiconductor MnSiTe exhibits colossal magnetoresistance (CMR) owing to the chiral orbital currents (COC). The COC is developed due to spin…
Metamagnetic quantum criticality in the antiferromagnetic topological insulator MnBiTe
Tithiparna Das, Soumik Mukhopadhyay
Combining transport and magnetization measurements, we discover the emergence of a tricritical point connecting the antiferromagnetic, metamagnetic and paramagnetic regions in MnBi…