Local X-ray magnetic circular dichroism study of Fe/Cu(111) using a tunneling smart tip

DiLullo, Andrew; Shirato, Nozomi; Cummings, Marvin; Kersell, Heath; Chang, Hao; Rosenmann, Daniel; Miller, Dean; Freeland, John W.; Hla, Saw -Wai; Rose, Volker

doi:10.1107/S1600577515023383

Title: Local X-ray magnetic circular dichroism study of Fe/Cu(111) using a tunneling smart tip

Journal Article · Thu Jan 28 00:00:00 EST 2016 · Journal of Synchrotron Radiation (Online)

DOI:https://doi.org/10.1107/S1600577515023383· OSTI ID:1245212

DiLullo, Andrew ^[1]; Shirato, Nozomi ^[2]; Cummings, Marvin ^[2]; Kersell, Heath ^[3]; Chang, Hao ^[4]; Rosenmann, Daniel ^[1]; Miller, Dean ^[1]; Freeland, John W. ^[2]; Hla, Saw -Wai ^[3]; Rose, Volker ^[5]

Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials; Ohio Univ., Athens, OH (United States)
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Ohio Univ., Athens, OH (United States)
Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials; Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Localized spectroscopy with simultaneous topographic, elemental and magnetic information is presented. A synchrotron X-ray scanning tunneling microscope has been employed for the local study of the X-ray magnetic circular dichroism at the FeL_2,3-edges of a thin iron film grown on Cu(111). Polarization-dependent X-ray absorption spectra have been obtained through a tunneling smart tip that serves as a photoelectron detector. In contrast to conventional spin-polarized scanning tunneling microscopy, X-ray excitations provide magnetic contrast even with a non-magnetic tip. Intensity variations in the photoexcited tip current point to chemical variations within a single magnetic Fe domain.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357; SC70705; FG02-02ER46012

OSTI ID:: 1245212

Journal Information:: Journal of Synchrotron Radiation (Online), Vol. 23, Issue 2; ISSN 1600-5775

Publisher:: International Union of CrystallographyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 6 works

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