Junxiang Yao

Researcher @ Leiden University

About

Research Areas: Semiconductor memory, superconducting devices, spintronics, materials science, nanofabrication, electrical characterization, and nano-imaging. Device physics expert with a PhD in Spintronics, dedicated to solving complex technical challenges that drive the Quantum technology forward. Possesses end-to-end expertise in quantum devices: from material (epitaxial) deposition/growth, nanoscale fabrication, electrical characterization, to physics-based modeling. Proficient in Python for automation, data analysis, and modeling. Experienced in Finite Element Analysis (COMSOL) and Micromagnetic simulation (Mumax3). Excels at translating intricate customer requirements into accurate solutions and explaining complex physics to diverse audiences, with a proven track record in managing international R&D collaborations. I am passionate about contributing to the next generation of quantum technologies, bridging fundamental research with cutting-edge applications. In my leisure time, I enjoy hiking, cycling, playing basketball, and wrenching on my cars.

Country

Netherlands

City

Leiden

Industry

Higher Education

Skill

Mesoscopic Quantum Transport Measurements (with RF, ac/dc, amplifiers, filters, etc), Python (SCPI, GUI, data acquisition/analysis and modeling/fitting); COMSOL; Mumax3, Modeling and Simulation, Cleanroom Nanofabrication, Nanotechnology, Nanoscale imaging: AFM (MFM, CAFM, KPFM, PFM), SEM&FIB, Epitaxial growth of oxides/semiconductors; Material Science, Vacuum Science and Technology, English (Professional); Dutch (B2), Origin (Software), Microsoft Office, LaTeX, Overleaf

Experience

Researcher

Leiden University

2023-3 - Present · 3 yrs 7 mos

Leiden, South Holland, Netherlands

I focus on exploring fundamental quantum questions, particularly spin manipulation in conceptual superconductor/semiconductor memory devices—a key challenge in the pursuit of next-generation superelectronics and quantum technologies. To tackle this, I design and fabricate quantum devices in a high-tech cleanroom environment, conduct extensive characterizations at mesoscopic and microscopic scales, and perform simulations to rigorously validate our experimental results.

Education

Leiden University

2023-3 - 2025-4 · 2 yrs 2 mos

Singlet cooper pairing or triplet cooper pairing in Josephson junction and SQUID (superconductor/metal or ferromagnet hybrids); Spin injection/detection in mesoscopic lateral junctions; Superconducting spintronics.