3 citations · 3 across the 7 of their papers we have counts for
7 papers
Nonlinear Spin Polarization Enables Néel Order Switching in Centrosymmetric Altermagnets
Sunit Das, Sayan Sarkar, Amit Agarwal
Deterministic electrical switching of the Néel order remains challenging in centrosymmetric altermagnets, where linear current-induced spin polarization is forbidden by inversion s…
Asymmetric Scattering-Induced Neel Spin-Orbit Torque in Antiferromagnets
Sayan Sarkar, Amit Agarwal
Magnetic switching in antiferromagnets relies on Neel spin orbit torque (NSOT), which originates from a current-induced staggered spin polarization of itinerant electrons. In colli…
Extrinsic Spin Splitter Currents in Altermagnets
Sanjay Sarkar, Sayan Sarkar, Amit Agarwal
Altermagnets exhibit momentum-dependent spin splitting despite having zero net magnetization. This enables a spin-splitter effect in which an external electric field generates tran…
Deterministic Switching in Altermagnets via Asymmetric Sublattice Spin Current
Sayan Sarkar, Sunit Das, Amit Agarwal
We demonstrate a deterministic switching mechanism in collinear altermagnets driven by asymmetric sublattice spin currents. Unlike conventional antiferromagnets, where combined par…
Spin band geometry drives intrinsic thermal spin magnetization and current
Sankar Sarkar, Harsh Varshney, Sayan Sarkar +1
Generating spin magnetization and spin currents without magnetic or electric fields is a key frontier in spin caloritronics. Spin responses driven by thermal gradients offer a prom…
Symmetry-driven Intrinsic Nonlinear Pure Spin Hall Effect
Sayan Sarkar, Sunit Das, Amit Agarwal
The generation of pure spin current, spin angular momentum transport without charge flow, is crucial for developing energy-efficient spintronic devices with minimal Joule heating.…
Light-induced Nonlinear Resonant Spin Magnetization
Sayan Sarkar, Sunit Das, Debottam Mandal +1
The optical generation of nonequilibrium spin magnetization plays a crucial role in advancing spintronics, providing ultrafast control of magnetization dynamics without the need fo…