Surface roughening, columnar growth and intrinsic stress formation in amorphous CuTi films | Zendy

U.V. Huelsen | Zendy; U. Geyer | Zendy; P. Thiyagarajan | Zendy

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Surface roughening, columnar growth and intrinsic stress formation in amorphous CuTi films

Author(s) -

U.V. Huelsen,

U. Geyer,

P. Thiyagarajan

Publication year - 1997

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/541867

Subject(s) - materials science , amorphous solid , scanning tunneling microscope , composite material , condensed matter physics , crystallography , nanotechnology , chemistry , physics

The growth of amorphous CuTi films, prepared by electron beam evaporation, is investigated by Scanning Tunneling Microscopy (STM), Small Angle Neutron Scattering (SANS) and in situ measurements of intrinsic mechanical stresses (ISM). In early growth stages the films develop compressive stresses and, with increasing film thickness, a crossover to tensile stresses. In the same thickness range the STM investigations show a change in the growth mode. The experiments suggest a transition from planar growth with statistical surface roughening to columnar growth

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