3 papers
cond-mat.mtrl-sci2026
Strain- and Field-Tunable Nonrelativistic Spin Splitting and Wave-Symmetry-Dependent Spin Transport in Twisted Bilayer Altermagnets
Shantanu Pathak, Saswata Bhattacharya
Magnetism-driven nonrelativistic spin splitting (NRSS) provides a pathway toward efficient, spin-orbit-free spintronics. In centrosymmetric two-dimensional antiferromagnets, spin-p…
cond-mat.mes-hall2025
Imaging Quantum Well States of Dirac Electrons in Exfoliated 3D Topological Insulators
Shreyashi Sinha, Shantanu Pathak, Saswata Bhattacharya +1
We present a controlled mechanical exfoliation technique for bulk 3D topological insulators that yields atomically clean ultrathin flakes, enabling quantum well states (QWS) of Dir…
cond-mat.mtrl-sci2025
Strain-Induced Modulation of Spin Splitting and Persistent Spin Textures in Low-Symmetry 2D Hybrid Perovskites: A case study of RP phase
Shantanu Pathak, Saswata Bhattacharya
We report the observation of a persistent spin texture (PST) in pseudo-2D hybrid perovskite, characterized by significant spin splitting strength on the order of \(3 \, \text{eV} \…