Visualizing short-range charge transfer at interfaces
Friday, September 13, 2013 - 08:01
in Physics & Chemistry
The precise mechanisms governing the relationships between superconductivity and magnetism were examined by using advanced scanning tunneling microscopy (STM) at the Center for Nanoscale Materials by users from Argonne's Advanced Photon Source working with CNM's Electronic & Magnetic Materials & Devices Group. Using cross-sectional STM and spectroscopy together with atomic-resolution electron microscopy, the team developed a clearer picture of the physical and chemical behavior of interfaces between cuprate and manganite layers within a complex-oxide-based superconducting/ferromagnetic material. The results show that the fundamental length sale of the electronic evolution between YBCO and LCMO is confined to the subnanometer range.