Far-infrared resonance in Sr2RuO4 - art. no. 227002

Citation
Mg. Hildebrand et al., Far-infrared resonance in Sr2RuO4 - art. no. 227002, PHYS REV L, 8722(22), 2001, pp. 7002
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
8722
Issue
22
Year of publication
2001
Database
ISI
SICI code
0031-9007(20011126)8722:22<7002:FRIS-A>2.0.ZU;2-U
Abstract
The far-infrared c-axis reflectance of Sr2RuO4 has been measured above and below the 2.5 K superconducting transition temperature of the sample. A pla sma edge develops near 70 cm(-1) as the temperature is lowered, which corre sponds to a Drude peak in the real optical conductivity associated with the onset of the coherent motion of the carriers. A gaplike suppression of the frequency-dependent scattering rate at low temperatures indicates that the coherent transport is related to a loss of scattering below 60 cm(-1). A s trong resonance near 9 meV is responsible for the scattering that destroys coherence.