skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Controlled modulation of hard and soft X-ray induced tunneling currents utilizing coaxial metal-insulator-metal probe tips

Abstract

Here, the effect of a local external electric field on the barrier potential of a tunneling gap is studied utilizing an emerging technique, synchrotron x-ray scanning tunneling microscopy. Here, we demonstrate that the shape of the potential barrier in the tunneling gap can be altered by a localized external electric field, generated by voltages placed on the metallic outer shield of a nanofabricated coaxial metal-insulator-metal tip, resulting in a controlled linear modulation of the tunneling current. Experiments at hard and soft x-ray synchrotron beamlines reveal that both the chemical contrast and magnetic contrast signals measured by the tip can be drastically enhanced, resulting in improved local detection of chemistry and magnetization at the surface.

Authors:
 [1];  [1];  [2];  [2];  [1]; ORCiD logo [1];  [1];  [2];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Ohio Univ., Athens, OH (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Scientific User Facilities Division; Early Career Award; USDOE
OSTI Identifier:
1372080
Alternate Identifier(s):
OSTI ID: 1361730
Grant/Contract Number:  
AC02-06CH11357; SC70705
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 121; Journal Issue: 1; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Cummings, Marvin, Shirato, Nozomi, Kersell, Heath, Chang, Hao, Rosenmann, Daniel, Freeland, John W., Miller, Dean, Hla, Saw -Wai, and Rose, Volker. Controlled modulation of hard and soft X-ray induced tunneling currents utilizing coaxial metal-insulator-metal probe tips. United States: N. p., 2017. Web. doi:10.1063/1.4973675.
Cummings, Marvin, Shirato, Nozomi, Kersell, Heath, Chang, Hao, Rosenmann, Daniel, Freeland, John W., Miller, Dean, Hla, Saw -Wai, & Rose, Volker. Controlled modulation of hard and soft X-ray induced tunneling currents utilizing coaxial metal-insulator-metal probe tips. United States. doi:10.1063/1.4973675.
Cummings, Marvin, Shirato, Nozomi, Kersell, Heath, Chang, Hao, Rosenmann, Daniel, Freeland, John W., Miller, Dean, Hla, Saw -Wai, and Rose, Volker. Thu . "Controlled modulation of hard and soft X-ray induced tunneling currents utilizing coaxial metal-insulator-metal probe tips". United States. doi:10.1063/1.4973675. https://www.osti.gov/servlets/purl/1372080.
@article{osti_1372080,
title = {Controlled modulation of hard and soft X-ray induced tunneling currents utilizing coaxial metal-insulator-metal probe tips},
author = {Cummings, Marvin and Shirato, Nozomi and Kersell, Heath and Chang, Hao and Rosenmann, Daniel and Freeland, John W. and Miller, Dean and Hla, Saw -Wai and Rose, Volker},
abstractNote = {Here, the effect of a local external electric field on the barrier potential of a tunneling gap is studied utilizing an emerging technique, synchrotron x-ray scanning tunneling microscopy. Here, we demonstrate that the shape of the potential barrier in the tunneling gap can be altered by a localized external electric field, generated by voltages placed on the metallic outer shield of a nanofabricated coaxial metal-insulator-metal tip, resulting in a controlled linear modulation of the tunneling current. Experiments at hard and soft x-ray synchrotron beamlines reveal that both the chemical contrast and magnetic contrast signals measured by the tip can be drastically enhanced, resulting in improved local detection of chemistry and magnetization at the surface.},
doi = {10.1063/1.4973675},
journal = {Journal of Applied Physics},
number = 1,
volume = 121,
place = {United States},
year = {2017},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Observing Spin Polarization of Individual Magnetic Adatoms
journal, August 2007


Elemental Fingerprinting of Materials with Sensitivity at the Atomic Limit
journal, October 2014

  • Shirato, Nozomi; Cummings, Marvin; Kersell, Heath
  • Nano Letters, Vol. 14, Issue 11
  • DOI: 10.1021/nl5030613

Tunneling Through Thin Insulating Layers
journal, February 1961

  • Fisher, J. C.; Giaever, I.
  • Journal of Applied Physics, Vol. 32, Issue 2
  • DOI: 10.1063/1.1735973

Large voltage-induced magnetic anisotropy change in a few atomic layers of iron
journal, January 2009


Imaging and manipulating the spin direction of individual atoms
journal, April 2010

  • Serrate, David; Ferriani, Paolo; Yoshida, Yasuo
  • Nature Nanotechnology, Vol. 5, Issue 5
  • DOI: 10.1038/nnano.2010.64

Observation of a Complex Nanoscale Magnetic Structure in a Hexagonal Fe Monolayer
journal, April 2006


Development of a Novel Surface Elemental Analysis Methodology: X-ray-Aided Noncontact Atomic Force Microscopy (XANAM)
journal, February 2015


An easy-to-implement filter for separating photo-excited signals from topography in scanning tunneling microscopy
journal, June 2013

  • Wang, Kangkang; Rosenmann, Daniel; Holt, Martin
  • Review of Scientific Instruments, Vol. 84, Issue 6
  • DOI: 10.1063/1.4811652

Ultrabroadband infrared nanospectroscopic imaging
journal, May 2014

  • Bechtel, H. A.; Muller, E. A.; Olmon, R. L.
  • Proceedings of the National Academy of Sciences, Vol. 111, Issue 20
  • DOI: 10.1073/pnas.1400502111

A hard X-ray nanoprobe beamline for nanoscale microscopy
journal, September 2012

  • Winarski, Robert P.; Holt, Martin V.; Rose, Volker
  • Journal of Synchrotron Radiation, Vol. 19, Issue 6
  • DOI: 10.1107/S0909049512036783

Development of a scanning tunneling microscope for in situ experiments with a synchrotron radiation hard-X-ray microbeam
journal, February 2006

  • Saito, Akira; Maruyama, Junpei; Manabe, Ken
  • Journal of Synchrotron Radiation, Vol. 13, Issue 2
  • DOI: 10.1107/S0909049506001622

Local X-ray magnetic circular dichroism study of Fe/Cu(111) using a tunneling smart tip
journal, January 2016

  • DiLullo, Andrew; Shirato, Nozomi; Cummings, Marvin
  • Journal of Synchrotron Radiation, Vol. 23, Issue 2
  • DOI: 10.1107/S1600577515023383

X-ray nanotomography of SiO 2 -coated Pt 90 Ir 10 tips with sub-micron conducting apex
journal, October 2011

  • Rose, V.; Chien, T. Y.; Hiller, J.
  • Applied Physics Letters, Vol. 99, Issue 17
  • DOI: 10.1063/1.3655907

Determination of tunnelling parameters in ultra-thin oxide layer poly-Si/SiO2/Si structures
journal, August 1995


Fabrication of a glass-coated metal tip for synchrotron-radiation-light-irradiated scanning tunneling microscopy
journal, August 2005

  • Akiyama, Kotone; Eguchi, T.; An, T.
  • Review of Scientific Instruments, Vol. 76, Issue 8
  • DOI: 10.1063/1.1979453

Study for noise reduction in synchrotron radiation based scanning tunneling microscopy by developing insulator-coat tip
journal, November 2007


Magnetic dichroism in L 2 , 3 emission of Fe, Co, and Ni following energy-dependent excitation with circularly polarized x rays
journal, December 1994


Potential energy landscape of metallic Moiré patterns
journal, November 2009


Nanostructure characterization by a combined x-ray absorption/scanning force microscopy system
journal, November 2012


Spin-dependent synchrotron x-ray excitations studied by scanning tunneling microscopy
journal, April 2012

  • Rose, V.; Chien, T. Y.; Freeland, J. W.
  • Journal of Applied Physics, Vol. 111, Issue 7
  • DOI: 10.1063/1.3670968

Exploring the microscopic origin of magnetic anisotropies with X-ray magnetic circular dichroism (XMCD) spectroscopy
journal, October 1999


Generalized Formula for the Electric Tunnel Effect between Similar Electrodes Separated by a Thin Insulating Film
journal, June 1963

  • Simmons, John G.
  • Journal of Applied Physics, Vol. 34, Issue 6
  • DOI: 10.1063/1.1702682

X-ray-excited photoelectron detection using a scanning tunneling microscope
journal, May 2008

  • Rose, V.; Freeland, J. W.; Gray, K. E.
  • Applied Physics Letters, Vol. 92, Issue 19
  • DOI: 10.1063/1.2936083

Magnetic anisotropy of thin films of Co on Cu(111)
journal, August 2002


Electric-Field-Induced Magnetic Anisotropy in a Nanomagnet Investigated on the Atomic Scale
journal, January 2014


A unique polarized x-ray facility at the Advanced Photon Source
journal, March 2002

  • Freeland, J. W.; Lang, J. C.; Srajer, G.
  • Review of Scientific Instruments, Vol. 73, Issue 3
  • DOI: 10.1063/1.1435814

Nanoscale Chemical Imaging by Scanning Tunneling Microscopy Assisted by Synchrotron Radiation
journal, March 2009