Welcome to the Zeng Lab

Welcome to the Zeng Lab, a condensed matter physics experiment group based at Purdue University, west Lafayette. We are excited about studying and manipulating quantum properties stemming from strong electronic correlations and nontrivial topology in two-dimensional (2D) materials.

Our research aims to discover new physics phenomena and address long-standing questions in physics. Taking one step further, harnessing these quantum properties can drive technological breakthroughs, such as building quantum computers.

Our experimental approach includes two parts: 1. Design and fabricate complex nanodevices by stacking 2D crystals into heterostructures in our own lab (just like playing with single-atom-thick Lego pieces) followed by nanofabrication processes in the Birck Nanotechnology Center. 2. We employ a suite of electrical and optical characterization tools to detect the quantum properties of the 2D nanodevices we build—at extremely low temperatures.

NEWS

04/26/2025: Our measurement lab is being renovated and projected to finish in October 2025.

04/24/2025: Congratulation, Jo, on receiving the Rolf Scharenberg Summer Graduate Fellowship!

04/05/2025: Polarization-resolved SHG is obtained in Zeng Lab for the first time.

02/20/2025: Our fabrication lab in B35 is fully functional and equipped with optical microscopes, atomic force microscope, motorized transfer stage, plasma etcher, laser lithography, second harmonic generation, and a huge sample preparation bench at the center of the stage. Check out the facilities tab for details.

01/17/2025: First 2D devices built in Zeng lab tested functional at room temperature. On-off behavior observed in encapsulated monolayer WSe2. Great job, Haochi!

05/04/2024: The Zeng lab website is launched.

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