Effects of superconductivity and charge order on the subterahertz reflectivity of La1.875Ba0.125-ySryCuO4 (Articolo in rivista)

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Label
  • Effects of superconductivity and charge order on the subterahertz reflectivity of La1.875Ba0.125-ySryCuO4 (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Ortolani, M (1); Calvani, P (1); Lupi, S (1); Schade, U (2); Perla, A (1); Fujita, M (3); Yamada, K (3) (2006)
    Effects of superconductivity and charge order on the subterahertz reflectivity of La1.875Ba0.125-ySryCuO4
    in Physical review. B, Condensed matter and materials physics (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ortolani, M (1); Calvani, P (1); Lupi, S (1); Schade, U (2); Perla, A (1); Fujita, M (3); Yamada, K (3) (literal)
Pagina inizio
  • 184508 (literal)
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  • 73 (literal)
Rivista
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  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • 1) \"Coherentia\"--INFM and Univ Roma La Sapienza, INFM, I-00185 Rome, Italy; 2) Berliner Elektronenspeicherring Gesells Synchrotr, D-12489 Berlin, Germany; 3) Kyoto Univ, Chem Res Inst, Uji, Kyoto 6100011, Japan (literal)
Titolo
  • Effects of superconductivity and charge order on the subterahertz reflectivity of La1.875Ba0.125-ySryCuO4 (literal)
Abstract
  • The reflectivity R(omega) of both the ab plane and the c axis of two single crystals of La1.875Ba0.125-ySryCuO4 has been measured down to 5 cm(-1), using coherent synchrotron radiation below 30 cm(-1). For y=0.085, a Josephson plasma resonance is detected at T < T-c=31 K in the out-of-plane R-c(omega), and a far-infrared peak (FIP) appears in the in-plane optical conductivity sigma(ab)(omega) below 50 K, where nonstatic charge ordering (CO) is reported by x-ray scattering. For y=0.05 (T-c=10 K), below the ordering temperature T-CO, a FIP is again observed in sigma(ab)(omega). The FIP then appears to be an infrared signature of CO, either static or fluctuating, as reported in previous work on the La-Sr cuprates. (literal)
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