| AVS 64th International Symposium & Exhibition | |
| Nanometer-scale Science and Technology Division | Thursday Sessions |
| Session NS+SP+SS-ThA |
| Session: | Advances in Scanning Probe Microscopy |
| Presenter: | Volker Rose, Argonne National Laboratory |
| Authors: | N. Shirato, Argonne National Laboratory M. Fisher, Argonne National Laboratory R. Reininger, Argonne National Laboratory S.W. Hla, Argonne National Laboratory V. Rose, Argonne National Laboratory |
| Correspondent: | Click to Email |
Recently, substantial progress was made on Argonne’s Synchrotron X-ray Scanning Tunneling Microscopy (SX-STM) project. In particular, we demonstrated the power of SX-STM for elemental characterization and topography of individual Ni nano-islands on Cu(111) at 2 nm lateral resolution with single atom height sensitivity [1], tested a new probe tip concept based on carbon nanotubes [2], and demonstrated soft x-ray imaging of nanoscale magnetic domains of an iron thin-film by x-ray magnetic circular dichroism (XMCD) contrast [3]. Further substantial advances are expected using the new low temperature (LT) SX-STM system, which has been developed over the last 3 years and is currently under commissioning.
To fully exploit the special capabilities of the new LT x-ray microscope, XTIP, a dedicated beamline for SX-STM is under construction at the Advanced Photon Source. To meet the scientific objective of the nanoscience and nanomagnetism communities most effectively, we are going to build a soft x-ray beamline with full polarization control operating over the 500-1600 eV energy range.
The dedicated XTIP beamline will provide researchers access to a one-of-a-kind instrument. Among the potential breakthroughs are “designer” materials created from controlled assembly of atoms and molecules, and the emergence of entirely new phenomena in chemistry and physics.
This work was funded by the Office of Science Early Career Research Program through the Division of Scientific User Facilities, Office of Basic Energy Sciences of the U.S. Department of Energy through Grant SC70705. Use of the Advanced Photon Source and the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract DE-AC02-06CH11357.
[1] N. Shirato et al., Nano Letters 14, 6499 (2014).
[2] H. Yan et al., J. Nanomaterials 2015, 492657 (2015).
[3] A. DiLullo et al., J Synchrotron Rad. 23, 574 (2016).