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Open Access Publications from the University of California

Epitaxial ferroelectric heterostructures fabricated by selective area epitaxy of SrRuO3 using an MgO mask.

  • Author(s): Karthik, J
  • Damodaran, Anoop R
  • Martin, Lane W
  • et al.

Illustration of a new high-temperature hard-mask process based on traditional lithography and selective wet-etching of MgO. The hard mask is compatible with standard nano-lithography techniques and heat treatments in excess of 1000 °C. Here, this technique is applied to produce temperature-stable contacts that give rise to low leakage, improved fatigue properties, and excellent high-temperature stability in ferroelectric thin-film capacitors.

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