Jach, T.
and Hamilton, J.
(1982),
Reversible Step Rearrangement and Segregation on Nickel Surfaces at the Curie Temperature, Physical Review B (Condensed Matter and Materials Physics)
(Accessed December 7, 2024)
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Reversible Step Rearrangement and Segregation on Nickel Surfaces at the Curie Temperature
Published
Author(s)
, J Hamilton
Abstract
Reversible step period rearrangement and carbon segregation have been observed on clean nickel single-crystal surfaces whose bulk is also relatively free of impurities. These transitions occurred over a temperature range of 35 K at the nickel Curie temperature, as determined by simultaneous low-energy electron diffraction, Auger, and permeability measurements on nickel stepped and flat (111) surfaces. The observation of segregated carbon in carbidic form (isolated carbon atoms) indicates an unusual bonding state of C to the surface below the Curie temperature. Measured carbon coverages indicate a change in the heat of segregation of greater than 0.2 eV per carbon atom at the Curie point.Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
26
Pub Type
Journals
Citation
Issues
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Created October 1, 1982, Updated February 19, 2017