Xi He

Brookhaven National Laboratory

Condensed Matter Physics and Materials Science Department
Bldg. 480, Room 1-140
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-3044
(402) 310-9012
xhe@bnl.gov

Pronouns: he, him, his

Expertise | Research | Education | Publications

Expertise

• Molecular Beam Epitaxial under Ultra-High Vacuum (<5×10^-10mbar) condition with thermal evaporation and Electron Beam evaporation. Sputtering deposition.
• X-ray Diffraction, X-ray Reflectivity, Atomic Force Microscopy, Transmission Electron Microscopy, Reflection High Energy Electron Diffraction
• Polar and longitudinal Magneto Optic Kerr Magnetometry, Superconducting Quantum Interference Devices, Alternating Gradient Force Magnetometer, Magnetic Force Microscopy, Faraday Rotation Measurement, Magnetotransport Measurement, Photoemission Electron Microscopy, X-ray Magnetic Circular Dichroism, X-ray Magnetic Linear Dichroism, Ultraviolet Photoemission Spectroscopy
• He-3 system with 0.3K temperature limit and 9T superconducting magnet to measure mutual inductance and resistance. Closed cycle He-4 system to measure mutual inductance and resistance.

Research Activities

Growth and characterization of high temperature superconducting thin films.

Education

• Ph.D. , Department of Physics and Astronomy, 2012

University of Nebraska-Lincoln, Lincoln, Nebraska, USA

Dissertation: “The Electrically Controlled Exchange Bias”

Supervisor: Prof. Christian Binek

• B. S. in Material Physics, Department of Material Science and Engineering, 2004

University of Science and Technology of China (USTC), Hefei, Anhui, China

Selected Publications

• Božovic I, He X, Wu J, Bollinger AT (2016) Dependence of the critical temperature in overdoped copper oxides on superfluid density. Nature 536:309–311. https://doi.org/10.1038/nature19061