Journal article
Infrared properties of La2-x(Ca,Sr)xCaCu2O6+δ single crystals
Abstract
The in-plane optical properties of two crystals of the bilayer cuprate La2-x(Ca,Sr)xCaCu2O6+δ, one with excess Ca and x=0.10 and the other with Sr and x=0.15, were investigated over the frequency range of 45–25 000 cm-1. The optical conductivity has been derived from Kramers-Kronig transformation. Each crystal exhibits a peak at around 15 000 cm-1, which corresponds to the charge-transfer (CT) excitation of the parent insulator. With increasing …
Authors
Wang NL; Zheng P; Feng T; Gu GD; Homes CC; Tranquada JM; Gaulin BD; Timusk T
Journal
Physical Review B, Vol. 67, No. 13,
Publisher
American Physical Society (APS)
Publication Date
April 1, 2003
DOI
10.1103/physrevb.67.134526
ISSN
2469-9950