Electrostriction at the LaAlO3/SrTiO3 interface.
نویسندگان
چکیده
We present a direct comparison between experimental data and ab initio calculations for the electrostrictive effect in the polar LaAlO(3) layer grown on SrTiO(3) substrates. From the structural data, a complete screening of the LaAlO(3) dipole field is observed for film thicknesses between 6 and 20 uc. For thinner films, an expansion of the c axis of 2% matching the theoretical predictions for an electrostrictive effect is observed experimentally.
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ورودعنوان ژورنال:
- Physical review letters
دوره 107 5 شماره
صفحات -
تاریخ انتشار 2011