Nanoscale controlled growth and domain structure of epitaxial ferromagnetic conductive oxide SrRuO3 thin films

Chang-Beom Eom

doi:10.1117/12.335910

22 December 1998 Nanoscale controlled growth and domain structure of epitaxial ferromagnetic conductive oxide SrRuO₃thin films

Chang-Beom Eom

Author Affiliations +

Proceedings Volume 3481, Superconducting and Related Oxides: Physics and Nanoengineering III; (1998) https://doi.org/10.1117/12.335910
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

We have deliberately controlled the initial stage nucleation, growth mechanism and domain structure of epitaxial SrRuO₃ thin films, using substrate etching, miscut and lattice mismatch. The use of buffered HF etched substrates results in more uniform coverage and two-dimensional growth of ultrathin SrRuO₃ films, as compared to polished substrates. For thicker films, the use of exact (001) SrTiO₃ substrates results in growth by two-dimensional nucleation, leading to two 90 degree domains in the plane. As the miscut angle of vicinal (001) SrTiO₃ substrates is increased, step flow growth occurs leading to single domain films. An incoherent three dimensional island growth occurs on (001) LaAlO₃ substrates, resulting in multi domain films.

Citation Download Citation

Chang-Beom Eom "Nanoscale controlled growth and domain structure of epitaxial ferromagnetic conductive oxide SrRuO₃thin films", Proc. SPIE 3481, Superconducting and Related Oxides: Physics and Nanoengineering III, (22 December 1998); https://doi.org/10.1117/12.335910

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