# Quantum Heterostructures of Rhodates and Iridates with Tunable Electron-Correlation and Spin-Orbit Interactions

> **NSF 01002526DB NSF RESEARCH & RELATED ACTIVIT** · University of Kentucky Research Foundation (KY) · $555,063

## Abstract

Non-technical abstract:

This project will investigate new physical phenomena that emerge when quantum materials are stacked into ultra-thin layered structures known as heterostructures. These are made by combining crystals such as iridium, ruthenium, and rhodium oxides, which interact in unique ways at their atomic interfaces. These interactions can lead to novel electronic and magnetic properties not found in the individual materials. The research will focus on tuning two key quantum effects, electron correlation and spin-orbit interaction, to uncover exotic behaviors with potential relevance to future quantum technologies. Using advanced techniques, the team will probe how electrons behave in these custom-designed materials. In addition to advancing scientific knowledge, the project will train both undergraduate and graduate students in state-of-the-art materials synthesis and spectroscopy. It also includes outreach programs for high school students and future teachers, supporting science education and inspiring interest in physics and materials science.

Technical abstract:

This project investigates emergent quantum phases in heterostructures composed of 4d rhodates and ruthenates and 5d iridates, where strong electron correlation (U) and spin-orbit interaction (SOI) coexist and compete. These systems offer a unique platform for tuning key physical parameters such as bandwidth, dimensionality, and lattice symmetry through interface engineering. It also enables cont

## Key facts

- **NSF award ID:** 2426874
- **Awardee organization:** University of Kentucky Research Foundation (KY)
- **SAM.gov UEI:** H1HYA8Z1NTM5
- **PI:** Ambrose Seo
- **Primary program:** 01002526DB NSF RESEARCH & RELATED ACTIVIT
- **All programs:** QUANTUM INFORMATION SCIENCE, EXP PROG TO STIM COMP RES
- **Estimated total:** $555,063
- **Funds obligated:** $410,949
- **Transaction type:** Continuing Grant
- **Period:** 09/01/2025 → 08/31/2029

## Primary source

NSF Award Search: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2426874

## Citation

> US National Science Foundation, Award 2426874, Quantum Heterostructures of Rhodates and Iridates with Tunable Electron-Correlation and Spin-Orbit Interactions. Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/grant/nsf/2426874. Licensed CC0.

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