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Staff & Operations
Postdoctoral Scholars


Board Members

Oskar J. Painter
Nai-Chang Yeh

Harry A. Atwater, Jr.
Julia R. Greer
James R. Heath
Nathan S. Lewis
Michael Roukes
Axel Scherer
Keith C. Schwab
Kerry J. Vahala


image Nai-Chang Yeh
Professor of Physics; Fletcher Jones Director, Kavli Nanoscience Institute

B.S., National Taiwan University, 1983; Ph.D., Massachusetts Institute of Technology, 1988.

phone: 626.395.4313
location: 128 Sloan Annex
mail code: 114-36

Research Group |

Experiments in superconductivity, magnetism and other strongly correlated electronic systems; scanning probe microscopy; nano-science/technology; low-temperature phases of helium; development of superconducting cavity-stabilized oscillators.

Our current research focuses on the following general directions:

  • Strongly correlated electronic systems, including competing orders in superconducting and magnetic perovskite oxides, pairing mechanism of cuprate superconductors, and Luttinger liquid behavior in DNA-templated metallic nanowires
  • Nano-scale instrumentation with variable temperature capabilities for surface and subsurface characterizations of the electronic and mechanical properties of novel nanostructures, nano-assemblies and molecules
    • Low-temperature high-field Scanning Tunneling Microscope (STM)
    • Variable temperature STM/Scanning Electron Microscope (SEM)
    • Low-temperature STM/Near-field Scanning Optical Microscope (NSOM)
  • Organic/Magnetic Heterostructures for Spintronics & Optoelectronics
    • Investigation of spin and charge quantum transport in the heterostructures using cryogenic STM/SNOM
    • Optimizing the tunneling magnetoresistance and electroluminescence for spintronic and optoelectronic applications
  • Applications of Superconducting Cavity Stabilized Oscillators
    • Precise measurements of the Bose-Einstein condensation of quantum gases and critical phenomena of quantum fluids
    • High frequency stability microwave sources




The KNI is located in Steele Laboratory
kni@caltech.edu | 626.395.1547
1200 East California Boulevard, 107-81, Pasadena, CA USA 91125
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