409 citations · 1.5k across the 30 of their papers we have counts for
10 papers · 1 filter
Driving spin chirality by electron dynamics in laser-excited antiferromagnets
Sumit Ghosh, Frank Freimuth, Olena Gomonay +2
Optical generation of complex spin textures is one of the most exciting challenges of modern spintronics. Here, we uncover a distinct physical mechanism for imprinting spin chirali…
Semi-realistic tight-binding model for Dzyaloshinskii-Moriya interaction
Ahmed Hajr, Abdulkarim Hariri, Guilhem Manchon +2
In this work, we discuss the nature of Dzyaloshinskii-Moriya interaction (DMI) in transition metal heterostructures. We first derive the expression of DMI in the small spatial grad…
Non-equilibrium spin density and spin-orbit torque in three dimensional topological insulators - antiferromagnet heterostructure
Sumit Ghosh, Aurelien Manchon
We study the behavior of non-equilibrium spin density and spin-orbit torque in a topological insulator - antiferromagnet heterostructure. Unlike ferromagnetic heterostructures wher…
Spin-orbit torque in 3D topological insulator-ferromagnet heterostructure: crossover between bulk and surface transport
Sumit Ghosh, Aurelien Manchon
Current-driven spin-orbit torques are investigated in a heterostructure composed of a ferromagnet deposited on top of a three dimensional topological insulator using the linear res…
Spin Orbit Torque in two dimensional Antiferromagnetic Topological Insulators
Sumit Ghosh, Aurelien Manchon
We investigate spin transport in two dimensional ferromagnetic (FTI) and antiferromagnetic (AFTI) topological insulators. In presence of an in plane magnetization AFTI supports zer…
Signature of topological transition in persistent current in a Dirac Ring
Sumit Ghosh, Aurelien Manchon
We study the persistent current in a one dimensional Dirac ring and show that the change of spin current with respect to an applied perpendicular electric field can be used to iden…