End station for nanoscale magnetic materials study : Combination of scanning tunneling microscopy and soft X-ray magnetic circular dichroism spectroscopy

Ueno Tetsuro

Sawada Masahiro

Kishimizu Yusuke

Kimura Akio

Namatame Hirofumi

Taniguchi Masaki

Review of Scientific Instruments

We have constructed an end station for nanoscale magnetic materials study at the soft X-ray beamline HiSOR BL-14 at Hiroshima Synchrotron Radiation Center. An ultrahigh-vacuum scanning tunneling microscope (STM) was installed for an in situ characterization of nanoscale magnetic materials in combination with soft X-ray magnetic circular dichroism (XMCD) spectroscopy experiment. The STM was connected to the XMCD experimental station via damper bellows to isolate it from environmental vibrations, thus achieving efficient spatial resolution for observing Si(111) surface at atomic resolution. We performed an in situ experiment with STM and XMCD spectroscopy on Co nanoclusters on an Au(111) surface and explored its practical application to investigate magnetic properties for well-characterized nanoscale magnetic materials.

atomic clusters

cobalt

damping

magnetic circular dichroism

metal clusters

nanomagnetics

nanostructured materials

scanning tunnelling microscopy

vibrations

X-ray spectra

Physics [ 420 ]

eng

American Institute of Physics

Copyright (c) 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

[ISSN] 0034-6748

[DOI] 10.1063/1.4770126

[NCID] AA00817730

[URI] http://link.aip.org/link/?rsi/83/123903

[DOI] http://dx.doi.org/10.1063/1.4770126