Patents by Inventor Jianxing Ma

Jianxing Ma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • In situ scanning tunneling microscope tip treatment device for spin polarization imaging
    Patent number: 7361893
    Abstract: A tip treatment device for use in an ultrahigh vacuum in situ scanning tunneling microscope (STM). The device provides spin polarization functionality to new or existing variable temperature STM systems. The tip treatment device readily converts a conventional STM to a spin-polarized tip, and thereby converts a standard STM system into a spin-polarized STM system. The tip treatment device also has functions of tip cleaning and tip flashing a STM tip to high temperature (>2000° C.) in an extremely localized fashion. Tip coating functions can also be carried out, providing the tip sharp end with monolayers of coating materials including magnetic films. The device is also fully compatible with ultrahigh vacuum sample transfer setups.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 22, 2008
    Assignee: UT-Battelle, LLC
    Inventors: An-Ping Li, Jianxing Ma, Jian Shen