Photoinduced effects and oxygen dynamics in YBa2Cu3Ox

M. Osada; M. Kakihana; M. Käll; J. Bäckström; L. Börjesson; N. H. Andersen

doi:10.1016/S0921-4534(01)00848-6

Photoinduced effects and oxygen dynamics in YBa₂Cu₃O_x

M. Osada^*, M. Kakihana, M. Käll, J. Bäckström, L. Börjesson, N. H. Andersen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Oxygen-deficient YBa₂Cu₃O_x (Y123) exhibits persistent photoconductivity when illuminated by visible light. We have investigated resonant Raman spectra as a function of excitation wavelength and temperature, which shed new light on photoinduced effects and chain oxygen dynamics in Y123. Experimental evidence suggests that the mechanism behind the unusual photoinduced effects primary involves photoinduced oxygen ordering. Our Raman data also constitute the non-diffraction observations of the superstructure phase transition in Y123.

Original language	English
Pages (from-to)	545-548
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	364-365
DOIs	https://doi.org/10.1016/S0921-4534(01)00848-6
Publication status	Published - 2001 Nov
Externally published	Yes

Keywords

Persistent photoconductivity
Photoinduced metastability
Resonant Raman scattering
YBaCuO

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1016/S0921-4534(01)00848-6

Cite this

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title = "Photoinduced effects and oxygen dynamics in YBa2Cu3Ox",

abstract = "Oxygen-deficient YBa2Cu3Ox (Y123) exhibits persistent photoconductivity when illuminated by visible light. We have investigated resonant Raman spectra as a function of excitation wavelength and temperature, which shed new light on photoinduced effects and chain oxygen dynamics in Y123. Experimental evidence suggests that the mechanism behind the unusual photoinduced effects primary involves photoinduced oxygen ordering. Our Raman data also constitute the non-diffraction observations of the superstructure phase transition in Y123.",

keywords = "Persistent photoconductivity, Photoinduced metastability, Resonant Raman scattering, YBaCuO",

author = "M. Osada and M. Kakihana and M. K{\"a}ll and J. B{\"a}ckstr{\"o}m and L. B{\"o}rjesson and Andersen, {N. H.}",

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T1 - Photoinduced effects and oxygen dynamics in YBa2Cu3Ox

AU - Osada, M.

AU - Kakihana, M.

AU - Käll, M.

AU - Bäckström, J.

AU - Börjesson, L.

AU - Andersen, N. H.

PY - 2001/11

Y1 - 2001/11

N2 - Oxygen-deficient YBa2Cu3Ox (Y123) exhibits persistent photoconductivity when illuminated by visible light. We have investigated resonant Raman spectra as a function of excitation wavelength and temperature, which shed new light on photoinduced effects and chain oxygen dynamics in Y123. Experimental evidence suggests that the mechanism behind the unusual photoinduced effects primary involves photoinduced oxygen ordering. Our Raman data also constitute the non-diffraction observations of the superstructure phase transition in Y123.

AB - Oxygen-deficient YBa2Cu3Ox (Y123) exhibits persistent photoconductivity when illuminated by visible light. We have investigated resonant Raman spectra as a function of excitation wavelength and temperature, which shed new light on photoinduced effects and chain oxygen dynamics in Y123. Experimental evidence suggests that the mechanism behind the unusual photoinduced effects primary involves photoinduced oxygen ordering. Our Raman data also constitute the non-diffraction observations of the superstructure phase transition in Y123.

KW - Persistent photoconductivity

KW - Photoinduced metastability

KW - Resonant Raman scattering

KW - YBaCuO

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