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Title: Electrochemical cell for in situ electrodeposition of magnetic thin films in a superconducting quantum interference device magnetometer

An electrochemical cell is designed and applied for in situ electrodeposition of magnetic thin films in a commercial SQUID magnetometer system. The cell is constructed in such a way that any parasitic contribution of the cell and of the substrate for electrodeposition to the magnetic moment of the deposited film is reduced to a minimum. A remanent minor contribution is readily taken into account by a proper analysis of the detected signal. Thus, a precise determination of the absolute magnetic moment of the electrodeposited magnetic film during its growth and dissolution is achieved. The feasibility of the cell design is demonstrated by performing Co electrodeposition using cyclic voltammetry. For an average Co film thickness of (35.6 ± 3.0) atomic layers, a magnetic moment per Co atom of (1.75 ± 0.11) μ{sub B} was estimated, in good agreement with the literature bulk value.
Authors:
;  [1] ;  [2]
  1. Institute of Materials Physics, Graz University of Technology, Petersgasse 16, 8010 Graz (Austria)
  2. Institute of Physics, University of Graz, Universitätsplatz 5, 8010 Graz (Austria)
Publication Date:
OSTI Identifier:
22392535
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ATOMS; DESIGN; ELECTROCHEMICAL CELLS; ELECTRODEPOSITION; MAGNETIC MOMENTS; MAGNETOMETERS; SIGNALS; SQUID DEVICES; SUBSTRATES; THICKNESS; THIN FILMS