Abstract Details
| Angle-resolved Photoemission Spectroscopy on the New Iron-based High Temperature Superconductors | |
|---|---|
| Abstract ID | MAT-17 |
| Presenter | Ming Yi |
| Presentation Type | Poster |
| Full Author List | M. Yi (1) , D. H. Lu (1) , R. H. He (1) , S.-K. Mo (1,2) , J. Analytis (3) , J.-H. Chu (3) , A. S. Erickson (3) , D. J. Singh (4) , Z. Hussain (2) , T. H. Geballe (3) , I. R. Fisher (3) , Z.-X. Shen (1) |
| Affiliations | (1) Department of Physics, Applied Physics, and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, CA 94305, USA (2) Advanced Light Source, Lawrence Berkeley National Lab, Berkeley, CA 94720, USA (3) Geballe Laboratory for Advanced Materials and Department of Applied Physics, Stanford University, Stanford, California 94305-4045, USA (4) Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6114, USA |
| Category | Materials Science |
| Abstract | The iron-based layered superconductors have galvanized explosive interest in the field of high temperature superconductivity since its discovery early this year. With transition temperatures as high as 55K, this new family of compounds not only ended the monopoly of copper oxides in the high Tc field, but also provides us a new direction to better understand the phenomenon of high temperature superconductivity. Here we present detailed angle-resolved photoemission results on these iron-based layered superconductors, including direct measurements of the electronic band structures and Fermi surface topology. This new class of superconductors is different from the cuprates in that they have a high density of states near the Fermi level and have multiple bands that cross the Fermi level, which make ARPES an ideal technique to study them because of its unique capability to resolve and capture the rich information on the electronic structure in momentum space. |
| Footnotes | |
| Funding Acknowledgement | The Stanford work is supported by DOE Office of Basic Energy Science, Division of Materials Science and Engineering, under contract DE-FG03-01ER45929-A001 and DE-AC02-76SF00515. Work at ORNL was supported by the DOE, Division of Materials Sciences and Engineering. |