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Reflectivity of optimally doped and underdoped Pr2−xCexCuO4−δ

✍ Scribed by A. Zimmers; R.P.S.M. Lobo; N. Bontemps; C.P. Hill; R.L. Greene

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
335 KB
Volume
408-410
Category
Article
ISSN
0921-4534

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✦ Synopsis

We present optical reflectivity data in optimally doped and underdoped PCCO thin films. The optical conductivity of the underdoped sample presents an unconventional increase around 2000 cm À1 when lowering the temperature. Spectral weight is transferred from low (0-3000 cm À1 ) to high (3000-6000 cm À1 ) energy, suggesting a decrease in the low energy density of states.

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