Multiple conducting carriers generated in LaAlO3/SrTiO3 heterostructures
SSA Seo, Z Marton, WS Choi, GWJ Hassink… - Applied physics …, 2009 - pubs.aip.org
We have found that there is more than one type of conducting carriers generated in LaAlO
3/SrTiO 3 heterostructures by comparing the sheet carrier density and mobility from optical
transmission spectroscopy with those from dc-transport measurements. When multiple types
of carriers exist, optical characterization dominantly reflects the contribution from the high-
density carriers whereas dc-transport measurements may exaggerate the contribution of the
high-mobility carriers even though they are present at low density. Since the low …
3/SrTiO 3 heterostructures by comparing the sheet carrier density and mobility from optical
transmission spectroscopy with those from dc-transport measurements. When multiple types
of carriers exist, optical characterization dominantly reflects the contribution from the high-
density carriers whereas dc-transport measurements may exaggerate the contribution of the
high-mobility carriers even though they are present at low density. Since the low …