Symmetry Breaking • Quantum Materials • Spin-optoelectronics

Rayan Chakraborty

I study how chemistry shapes the physics of quantum materials.

(well, mostly research) This is my personal blog.

Selected Work

Organic-to-inorganic symmetry transfer

Recent papers exploring how nonprimary ammonium cations modulate structural asymmetry to unlock new optoelectronic and spin behavior in hybrid perovskites.

2026 · Preprint

Hidden Spin-Valley-Locking Extends Room Temperature Spin Lifetime in 2D Perovskite Semiconductors

Graphic for hidden spin-valley-locking preprint

Hidden spin-valley locking in 2D hybrid perovskites stabilizes optically generated spin-polarized carriers for over four nanoseconds at room temperature without an external magnetic field.

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2026 · JACS · ARTICLE

New 3D Hybrid Perovskites with Symmetry Breaking

Placeholder visual for 2026 JACS paper

Large polar cation in three-dimensional hybrid perovskites and its role in reshaping emergent polarization and spin properties.

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2025 · JACS · PERSPECTIVE

Local Symmetry Breaking in 2D Hybrid Perovskites

Placeholder visual for 2025 JACS paper

Nonprimary ammonium cations in 2D hybrid perovskites break local inversion symmetry.

2024 · JACS · ARTICLE

Persistent Spin Textures in 2D Hybrid Perovskites

Placeholder visual for 2024 JACS paper

Structural design rules for stabilizing spin valleys with persistent spin textures.

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2023 · JACS · ARTICLE

Design Rule for Symmetry Breaking in Hybrid Perovskites

Placeholder visual for 2023 JACS paper

A generalized pathway for designing non-centrosymmetric perovskites by restricting cation dynamics.

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Research Agenda

Tools and questions shaping the work

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Tooling

Hybrid Perovskite Studio

A Streamlit-based web application workspace for modeling and analysis of hybrid crystal structures and simulation data.

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Tooling

PDFStream

A Streamlit-based web application for processing X-ray/Neutron scattering and pair distribution function data.

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Scientific Direction

Lattice Dynamics and Phonons

Understanding how vibrational motion, dynamic disorder, and lattice distortions impact quantum phenomena in soft semiconductors.

Writing

Coming soon

Photography preview

Photography

Symmetry,
Light,
and Life

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Open Thread

Ongoing questions and collaborations

Reach out to talk about publications, current questions, or potential collaborations.