Journal
PHYSICAL REVIEW B
Volume 69, Issue 17, Pages -Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevB.69.172103
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The structural parameters of rare-earth oxides lanthania (La2O3) and ytterbia (YbO), and of transition-metal oxides yttria (Y2O3) and lutetia (Lu2O3), candidate replacements of silica as gate insulators in nanometric Si electronics, are determined via ab initio calculations. The stability against formation of silica, silicides, and silicates for these oxides in contact with silicon is also investigated: we find stability against silica and silicide formation, but not against silicates.
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