Charge redistribution in YBa2Cu3O7-d probed by Raman spectroscopy: CuO2-plane phonon as a probe of carrier dynamics in the CuO2 plane

Minoru Osada, Masato Kakihana, Mikael Käll, Lars Börjesson

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Yttrium barium copper oxide system, which undergoes a metal-to-insulator transition under variation of carrier concentration, was investigated using Raman spectroscopy. The intensity of CuO2-plane phonon modes decreased as the system approached the metal-to-insulator phase boundary and it scaled with the inverse of the hole concentration within the CuO2 conducting planes. The CuO2-plane mode intensity and transition temperature for the oxides was found to be correlated. It was found that a simple and useful probe for metal-to-insulator transition and carrier dynamics in the CuO2 plane for substituted materials was provided by this correlation and the CuO2-plane mode intensity.

Original languageEnglish
Pages (from-to)4988-4990
Number of pages3
JournalApplied Physics Letters
Volume81
Issue number26
DOIs
Publication statusPublished - 2002 Dec 23
Externally publishedYes

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Raman spectroscopy
insulators
probes
metals
barium oxides
copper oxides
yttrium
transition temperature
conduction
oxides
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Charge redistribution in YBa2Cu3O7-d probed by Raman spectroscopy : CuO2-plane phonon as a probe of carrier dynamics in the CuO2 plane. / Osada, Minoru; Kakihana, Masato; Käll, Mikael; Börjesson, Lars.

In: Applied Physics Letters, Vol. 81, No. 26, 23.12.2002, p. 4988-4990.

Research output: Contribution to journalArticle

Osada, Minoru ; Kakihana, Masato ; Käll, Mikael ; Börjesson, Lars. / Charge redistribution in YBa2Cu3O7-d probed by Raman spectroscopy : CuO2-plane phonon as a probe of carrier dynamics in the CuO2 plane. In: Applied Physics Letters. 2002 ; Vol. 81, No. 26. pp. 4988-4990.
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