3 citations · 3 across the 16 of their papers we have counts for
17 papers
A Universal Crystal-Field Design Principle for Orbital-Order-Driven Altermagnetism
Shantanu Pathak, Saswata Bhattacharya
Altermagnets combine collinear antiferromagnetic order with nonrelativistic spin splitting, enabling spintronic functionalities without relying on spin--orbit coupling. While stagg…
Lone-Pair-Induced Lattice Softness Enables Ultralow Thermal Conductivity in Hybrid Organic-Inorganic Perovskite GuaPbI
Rudra P. Singh, Shantanu Pathak, Saswata Bhattacharya +1
Thermal conductivity () minimization of inorganic thermoelectrics can only be achieved to a certain extent via nanostructural engineering. Here, we introduce a lone-pair-driven…
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…
Tunable Carrier Dynamics in Carbide Antiperovskites via A-Site Cation Substitution
Sanchi Monga, Saswata Bhattacharya
We present a comprehensive first-principles investigation of the electronic structure and excited-state carrier dynamics in the carbide antiperovskites CaCSe and SrCSe$…
Ferroelectric Control of Spin Textures in Layered Hybrid Perovskites
Divyanshi Tyagi, Saswata Bhattacharya
Hybrid organic--inorganic perovskites with broken inversion symmetry provide a fertile ground for uncovering coupled spin-orbit and ferroelectric phenomena. Here, we investigate th…
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…
Tuning Nonradiative Recombination via Cation Substitution in Inorganic Antiperovskite Nitrides
Sanchi Monga, Saswata Bhattacharya
Inorganic antiperovskite nitrides have recently emerged as promising materials for photovoltaic applications, yet their nonradiative recombination dynamics remain largely unexplore…
Unlocking reversible and nonvolatile anomalous valley Hall control through multiferroic van der Waals heterostructures
Ankita Phutela, Saswata Bhattacharya
Achieving external control over the anomalous valley Hall (AVH) effect is essential for advancing valleytronic applications. However, many of the existing approaches suffer from li…
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} \…
Exploring the role of four-phonon scattering in the lattice thermal transport of LaMoN
Manjari Jain, Sanchi Monga, Saswata Bhattacharya
In this work, we systematically investigate the lattice thermal conductivity () of LaMoN in the 2/ and 3 phases using first-principles calculations combined wi…
Role of Dimensionality on Excitonic Properties of BiSeI using Many-body Perturbative Approaches
Sanchi Monga, Saswata Bhattacharya
The mechanical exfoliation of two-dimensional materials has sparked significant interest in the study of low-dimensional structures. In this work, we investigate the bulk and low-d…
Inducing Spin Splitting and Anomalous Valley Hall Effect in A-Type AFM FeC(OH) through Electric Field and Janus Engineering
Ankita Phutela, Saswata Bhattacharya
The antiferromagnetic (AFM) materials are distinguished by zero net magnetic moment, high resistance to external magnetic disturbances, and ultrafast dynamic responses. For advanci…
Enhanced room temperature ferromagnetism in nanostructured MoS2 flakes by hydrogen post-treatment: Combined experimental and first-principles-based studies
Sharmistha Dey, Ankita Phutela, Saswata Bhattacharya +3
We meticulously study the individual effects of hydrogen irradiation and annealing on the electronic structure and magnetic properties of nanostructured MoS2 thin films grown throu…
Synergetic effect of edge states and point defects to tune ferromagnetism in CVD-grown vertical nanostructured MoS2: A correlation between electronic structure and theoretical study
Sharmistha Dey, Pankaj Srivastava, Ankita Phutela +3
Room-temperature ferromagnetism (RTFM) exhibited by nanostructured two-dimensional semiconductors for spintronics applications is a fascinating area of research. The present work r…
Theoretical Insights into Inorganic Antiperovskite Nitrides (XNA; X = Mg, Sr, Ca, Ba; A = Sb, As): An Emerging Class of Materials for Photovoltaics
Sanchi Monga, Manjari Jain, Claudia Draxl +1
Antiperovskite nitrides are potential candidates for applications harvesting solar light. With a comprehensive state-of-the-art approach combining hybrid density-functional theory,…
Probing switchable valley-related Hall effects in 2D magnetic MXenes
Ankita Phutela, Sajjan Sheoran, Saswata Bhattacharya
The search for two-dimensional materials with exotic valley-dependent properties has attracted rapid attention as they are fundamentally intriguing and practically appealing for na…
Rashba and Dresselhaus effects in doped methylammonium lead halide perovskite MAPbI
Megha Arya, Preeti Bhumla, Sajjan Sheoran +2
Inorganic-organic lead halide perovskites, particularly methylammonium lead halide (MAPbI) perovskite, is perceived to be a promising material for optoelectronics and spintroni…