Spontaneous anomalous Hall effect in two-dimensional altermagnets
Sajjan Sheoran, Pratibha Dev. "Spontaneous anomalous Hall effect in two-dimensional altermagnets." Phys. Rev. B 111, 184407 (2025).
CV
Education
- Ph.D in Physics, Indian Institute of Technology Delhi, 2024.
- M.Sc. in Physics, Indian Institute of Technology Gandhinagar, 2019
- B.Sc.(H) in Physics, DDUC, University of Delhi, 2017
Work experience
- July 2024 - current: Research Associate
- Howard University
- Duties includes: Ab initio exploration of topological superconductivity.
- Supervisor: Prof. Pratibha Dev
- Jan 2020- Jun 2024: Research Fellow
- Indian Institute of Technology Delhi
- Duties includes: Performing research on condensed matter, Present results in talks at conferences, Participating in development of manuscripts and reports, Performing teaching assistanship, Writing and defending Phd thesis.
- Supervisor: Prof. Saswata Bhattacharya
- Aug 2018- Jun 2019: Project fellow
- Indian Institute of Technology Gandhinagar
- Project: “Local Hidden Variables and Nonclassicality in System of Spin-1/2 Particles.”
- Supervisor: Prof. Ravinder R Puri
Skills
- Electronic structure (Density functional, k.p perturbation and tight-binding methods), density functional perturbation theory, many-body perturbation theory, Molecular dyanmics
- Packages: VASP, Quantum ESPRESSO, Phono3py, Wannier90, WannierTools
- Languages: Python, Mathematica, C++, Bash Shell Scripting
- Tools: Jupyter, Materials Studio, Gnuplot, XmGrace, p4vasp, Vesta, VMD, XCrySDen, LaTeX
- Machine Learning and Predictive Modeling
- Supervised Learning (e.g., regression, classification)
- Unsupervised Learning (e.g., clustering, dimensionality reduction)
- Deep Learning (e.g., neural networks, convolutional neural networks)
- Libraries/Frameworks: Scikit-learn, TensorFlow, PyTorch
- Platforms : Windows, Various Linux distributions
Publications
Multiple Zeeman-type hidden spin splittings in PT-symmetric layered antiferromagnets
Sajjan Sheoran*, Saswata Bhattacharya*. "Multiple Zeeman-type hidden spin splittings in PT-symmetric layered antiferromagnets". Phys. Rev. B (Letter) 109, L020404 (2024).
Nonrelativistic spin splittings and altermagnetism in twisted bilayers of centrosymmetric antiferromagnets
Sajjan Sheoran , Saswata Bhattacharya. "Nonrelativistic spin splittings and altermagnetism in twisted bilayers of centrosymmetric antiferromagnets". Phys. Rev. Mater. (Letter) 8, L051401 (2024).
Strain-driven topological quantum phase transition in the family of halide perovskites
Ankita Phutela*, Sajjan Sheoran, Deepika Gill, Saswata Bhattacharya*. "Strain-driven topological quantum phase transition in the family of halide perovskites". J. Mater. Chem. C 12, 2165 (2024).
Probing the uniaxial strain-dependent valley drift and Berry curvature in monolayer MoSi2N4
Sajjan Sheoran, Manjari Jain, Ruman Moulik, and Saswata Bhattacharya. "Probing the uniaxial strain-dependent valley drift and Berry curvature in monolayer MoSi2N4." Phys. Rev. Mater. 7, 114003 (2023).
Exploring chalcohalide perovskite-inspired materials (Sn2SbX2I3; X = S, Se) for optoelectronic and spintronic Applications
Manish Kumar, Sajjan Sheoran, and Saswata Bhattacharya. "Exploring chalcohalide perovskite-inspired materials (Sn2SbX2I3; X = S, Se) for optoelectronic and spintronic Applications." J. Phys. Chem. Lett. 14, 10158-10165 (2023).
Tailoring defects in SrTiO3 by one step nanoarchitectonics for realizing photocatalytic nitrogen fixation in pure water
A. Kumar, M. Sharma, Sajjan Sheoran, S. Jaiswal, A. Patra, Saswata Bhattacharya, and V. Krishnan. "Tailoring defects in SrTiO3 by one step nanoarchitectonics for realizing photocatalytic nitrogen fixation in pure water." Nanoscale 15(27), 11667-11680 (2023).
Coupled spin-valley, Rashba effect, and hidden spin polarization in WSi2N4 family
Sajjan Sheoran, S. Monga, A. Phutela, and Saswata Bhattacharya. "Coupled spin-valley, Rashba effect, and hidden spin polarization in WSi2N4 family." J. Phys. Chem. Lett. 14(6), 1494-1503 (2023).
Manipulation of valley and spin properties in two-dimensional Janus WSiGeZ4 (Z = N, P, As) through symmetry control
Sajjan Sheoran, A. Phutela, R. Moulik, and Saswata Bhattacharya. "Manipulation of valley and spin properties in two-dimensional Janus WSiGeZ4 (Z = N, P, As) through symmetry control." J. Phys. Chem. C 127(23), 11396-11406 (2023).
Emergence of cubic ordered full-plane persistent spin textures in lead-free materials
Sajjan Sheoran*, P. Bhumla, and Saswata Bhattacharya*. "Emergence of cubic ordered full-plane persistent spin textures in lead-free materials." Phys. Rev. Mater. 6, 094602 (2022).
Rashba spin splitting and anomalous spin textures in the bulk ferroelectric oxide perovskite KIO3
Sajjan Sheoran*, Manish Kumar, Preeti Bhumla, and Saswata Bhattacharya*. "Rashba spin splitting and anomalous spin textures in the bulk ferroelectric oxide perovskite KIO3." Mater. Adv. 3, 4170-4178 (2022).
Vacancy-ordered double perovskites Cs2BI6 (B = Pt, Pd, Te, Sn): An emerging class of thermoelectric materials
Preeti Bhumla*, Manjari Jain, Sajjan Sheoran, and Saswata Bhattacharya*. 'Vacancy-ordered double perovskites Cs2BI6 (B = Pt, Pd, Te, Sn): An emerging class of thermoelectric materials.' J. Phys. Chem. Lett. 13 (50), 11655-11662 (2022).
Origin of Rashba Spin Splitting and Strain Tunability in Ferroelectric Bulk CsPbF3
Preeti Bhumla*, Deepika Gill, Sajjan Sheoran, and Saswata Bhattacharya*. "Origin of Rashba Spin Splitting and Strain Tunability in Ferroelectric Bulk CsPbF3." J. Phys. Chem. Lett. 12(39), 9539-9546 (2021).
Talks
Recent Progress in Graphene and 2D Materials Research (RPGR-2023)
Talk at Indian Institute of Science, Bengaluru, India
International Conference on Molecular Simulation (ICMS 2023)
Poster presentation at National Taiwan University, Taipei, Taiwan
NAMMA-Psi-k workshop
Participation at Indian Institute of Science and Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India (virtual)
IUMRS-ICA 2022
Poster presentation at Indian Institute of Technology Jodhpur, Jodhpur, India
PSI-K Conference 2020
Poster Presentation at EPFL, Lausanne, Switzerland
American Physical Society (APS) March Meeting 2022
Oral Presentation at American Physical Society, Virtual
Young Investigator Meet on Quantum Condensed Matter Theory (YIMQCMT-2020)
Participation at Young Investigator Meet on Quantum Condensed Matter Theory, Virtual
Current Trends in Theoretical Chemistry (CTTC-2020)
Talk at Symposium on Current Trends in Theoretical Chemistry, Virtual
Teaching
Service and leadership
- Reviewer for reputed scientific journals:
- Nature Communications
- Applied Physics Letters
- Physical Chemistry Chemical Physics
- Scientific Reports