Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.85.094519
Title: Distinct oxygen hole doping in different layers of Sr 2CuO 4-δ/La 2CuO 4 superlattices
Authors: Smadici, S.
Lee, J.C.T.
Rusydi, A. 
Logvenov, G.
Bozovic, I.
Abbamonte, P.
Issue Date: 28-Mar-2012
Citation: Smadici, S., Lee, J.C.T., Rusydi, A., Logvenov, G., Bozovic, I., Abbamonte, P. (2012-03-28). Distinct oxygen hole doping in different layers of Sr 2CuO 4-δ/La 2CuO 4 superlattices. Physical Review B - Condensed Matter and Materials Physics 85 (9) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.85.094519
Abstract: X-ray absorption in Sr 2CuO 4-δ/La 2CuO 4 (SCO/LCO) superlattices shows a variable occupation with doping of a hole state different from holes doped for x x optimal in bulk La 2-xSr xCuO 4 and suggests that this hole state is on apical oxygen atoms and polarized in the a-b plane. Considering the surface reflectivity gives a good qualitative description of the line shapes of resonant soft x-ray scattering. The interference between superlattice and surface reflections was used to distinguish between scatterers in the SCO and the LCO layers, with the two hole states maximized in different layers of the superlattice. © 2012 American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/96253
ISSN: 10980121
DOI: 10.1103/PhysRevB.85.094519
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