Saraf Mohaimen Chowdhury

Quantum Materials & Low-Dimensional Nanoelectronics

About

My work primarily aims to understand the physical properties of nanomaterials by using first-principles calculations and exploring how small structures such as atomically thin layers, can lead to new opportunities in nano-electronics, photonics, and information functionalities. I'm interested in how spins, light, and topology are interconnected at the subatomic level, and how we can harness these aspects for future technologies.

Research Interests

  • 0D/2D quantum dots and monolayers/extended layers — electronic, magnetic, optical, and related phenomena
  • Defects, doping, and surface effects — disorder, localized states, and structural modulation
  • Nanomagnetism — spin-orbit interactions, orbital magnetism, magnetic anisotropy, spin engineering
  • Chiral/noncentrosymmetric perovskites — spin-dependent, symmetry-driven, and optical phenomena
  • Homology-based characterization of nodal surfaces in low-dimensional materials
  • μSR-Informed Modeling of Perovskite Materials — Local Fields, Spin Dynamics, and Defect States
  • Nonlinear optics in noncentrosymmetric systems
  • Machine/Deep learning based modelling to predict magneto-electronic and optoelectronic behavior
  • Cavity quantum electrodynamics and spin–photon interactions (QED-DFT methods)

Influential Books

Molecular Quantum Mechanics

Atkins & Friedman

Built my foundational understanding of atomic-level interactions and approximation theories. Key concepts applied in my research.

Quantum Transport: Atom to Transistor

Supriyo Datta

My introduction to NEGF theory. Although dated, I chose it for its simpler but precise explanations, many figures, and intuitive approach to describe transport properties.

Topological Quantum Materials

Grigory Tkachov

I found this book very effective for self-study because the author creates an intuitive scenario before starting any detailed explanation. So, in my opinion, if anyone has the least understandings of general concepts like invariants, band inversion mechanisms, and Berry curvature; then it's a very good book to learn about topological insulators, transport theory in disordered materials, and the origin of Majorana zero modes from very scratch.

Quantum Field Theory for the Gifted Amateur

Lancaster & Blundell

I just started reading it to pass the time during a major power blackout when my phones were dead. I was really amazed at how such intricate concepts could be explained in a conversational narrative. Topics like propagators, statistical mechanics, Klein-Gordon equations, and cavity dynamics were the main topics I mostly tried to understand.

Pivotal Literature

Recent Progress on 2D Magnets

Jiang, Xue, et al. Applied Physics Reviews 8.3 (2021)

Fundamental understanding of intrinsic magnetism and defect-induced magnetizations in low-dimensional systems.

Tutorial on Nonperturbative Cavity Quantum Electrodynamics

De Bernardis, Mercurio & De Liberato. JOSA B 41.8 (2024)

Sparked my curiosity about spin-photon coupling through QED-DFT approaches, a direction I hope to pursue as my expertise develops.

Recognition

— Recognition from Port City International University and the Vice Chancellor for contributions to quantum materials research. View post ↗