ELECTRONICALLY TUNABLE PROPERTIES OF NANOCRYSTALLINE METALS Harald
Drings1, Raghavan Nadar Viswanath1, Roland Würschum2, Jörg
Weissmüller1 and Herbert Gleiter1 - 1 Forschungszentrum Karlsruhe,
Institute for Nanotechnology Postfach 3640 76021 Karlsruhe,Germany,Tel
+49-7247-82-6378, Fax +49-7247-82-6368 - 2 Technical University of
Graz, Institute for Technical Physics, Petersgasse 16, A-8010 Graz,
Austria

The surface charge density of materials can be influenced by an
externally applied field [1]. Due to the large fraction of surface
atoms in nanocrystalline (n-) materials, a field-induced variation in
the surface charge density should lead to a reversible change of
structural and physical properties. To verify this assumption, in-situ
measurements of the lattice parameter d of n-Pt and the magnetic
susceptibility of n-Pd, in dependence of charging, were performed.
Electrochemical double layer formation in an electrochemical cell was
used for charging. Reversible changes of the lattice parameter and the
magnetic susceptibility were observed.

• Legal notice:
  

  Copyright (c) Pielaszek Research, all rights reserved.
  The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
  In every case, proper references including Author(s) name(s) and URL of this webpage: https://science24.com/paper/290 must be provided.

1. Small Angle Neutron Scattering Investigations of Spin Disorder in Nanocomposite Soft Magnets
2. Surface stress, the lattice parameter of small crystallites and its response to pressure
3. Internal Friction Study of the Melting of PB Inclusion in AL Matrix
4. Phase Equilibrium in Nanoscale Alloys