Optical conductivity of LaNiO3: Coherent transport and correlation driven mass enhancement

Physical Review B - Condensed Matter and Materials Physics

Volumn 82, Issue 16, 2010, Pages

  Ouellette, Daniel G ^a   Lee, Sungbin ^a   Son, Junwoo ^b   Stemmer, Susanne ^b   Balents, Leon ^c   Millis, Andrew J ^d   Allen, S James ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b University of California   (United States)

^c UNIVERSITY OF CALIFORNIA   (United States)

^d NONE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 78149303261     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.82.165112     Document Type: Article

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16. The KK relations do not strictly apply to layered structures because of singularities at the Fabry-Perot resonances. It should be noted for completeness that for a conducting film of finite thickness, the phase angle calculated from the KK relations may no longer be interpreted physically as the actual phase shift of the reflected wave. Regardless, whenever the thin-film approximation is valid, the phase angle given by the KK relations leads to the correct value of the sheet conductance according to Eq.. This is because whenever the penetration depth is much greater than the film thickness, the measured reflectivity is identical to if the film was indeed infinitesimally thin and is easily verified numerically.
17. 3 means that the contribution of any off-diagonal terms is expected to be less than the effects arising from non-normal incidence and low sheet conductance.
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