Research Interests and Key Results
Materials - Synthesis of New Key Superconducting Materials"At the extreme forefront of research in superconductivity is the empirical search for new materials." One of my research targets is the syntesis of new high-temperature superconductors by Molecular Beam Epitaxy (MBE), which, we have demonstrated as follows, is capable of opening up a novel synthetic route for new key materials.
Physics - in-situ ARPES of MBE films
Angle-resolved Potoemission Spectroscopy (ARPES) has been proven to be a powerful tool for investigating electronic structure of materials, especially for E-k dispersion near Fermi level. Combination of ARPES and MBE enables such investigations for (1) materials and/or single crystals only attainable by MBE, (2) non-cleavable materials, as well as significantly relaxes restrictions arising from the surface sensitivity. By taking advantage of the merits, we have successfully mapped the Fermi surface of the 30K-class electron-doped T'-(La, Ce)2CuO4.
ARPES with MBE films would provide a critical clue to understanding the apparent discrepancy between the present consensus of high-Tc physics and superconductivity observed in the non-doped cuprates. Such an attempt is under way.
Application - sorry under construction