Quantum materials and devices

Addressing research challenges in quantum science and technology through fundamental advances in physics, materials, engineering design, and prototype development

We utilize emerging quantum materials to enable new generations of microwave devices that will meet the requirements imposed on the control and readout of quantum computing hardware. While prioritizing areas of national importance, our research aims to fill the gap between fundamental research and application-oriented device development.

Research thrust areas

Our research focuses on:

  • On-chip nonreciprocal device design, development, and application
  • Nonreciprocal superconducting materials
  • Topological materials and heterostructures
The circulator device made from quantum anomalous Hall materials, which is smaller than a US dime.

Researchers

Qu, Dongxia
Dongxia Qu
Staff Scientist
Martinez, Luis
Luis Martinez
Physics Research Scientist
Ray, Keith George
Keith Ray
Research Scientist

Publications

2023

Edge Magnetoplasmon Dispersion and Time-Resolved Plasmon Transport in a Quantum Anomalous Hall Insulator
2023
L.A. Martinez, G. Qiu, P. Deng, P. Zhang, K.G. Ray, L. Tai, M.-T. Wei, H. He, K.L. Wang, J.L DuBois, and D.-X. Qu

2022

Phase-Slip Lines and Anomalous Josephson Effects in a Tungsten Clusters-Topological Insulator Microbridge
2022
Dong-Xia Qu, Joseph J. Cuozzo, Nick E. Teslich, Keith G. Ray, Zurong Dai, Tian T. Li, George F. Chapline, Jonathan L. DuBois, and Enrico Rossi

Prior

Temperature measurement of laser irradiated metals using hyperspectral imaging
Phys. Rev. Appl., 2020
D.-X. Qu, J. Berry, N. P. Calta, M. F. Crumb, G. Guss, and M. J. Matthews

Onset of a two-dimensional superconducting phase in a topological-insulator-normal-metal Bi1-xSbx/Pt junction fabricated by ion-beam techniques
Phys. Rev. Lett., 2018
D.-X. Qu, N. E. Teslich, Z. Dai, G. F. Chapline, T. Schenkel, S. R. Durham, and J. DuBois