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IrO 2

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Schematic diagram of home-made HV RF<br />

magnetron sputtering system<br />

Target<br />

Substrate [Al 2O 3 - sapphire (SA)]<br />

RF power<br />

Background pressure<br />

Sputtering pressure<br />

Substrate temperature<br />

O 2 / Ar flows<br />

1- inch Ir (99.95%)<br />

(001); (100); (012); (110)<br />

65 W<br />

3×10 -5 mBar<br />

~ 6.5×10 -2 mBar<br />

300-400°C<br />

2.5 / 5.0 sccm

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