Local structural and electronic changes accompanying photodoping in YBa2Cu3O6+x

T. A. Tyson; J. F. Federici; D. Chew; A. R. Bishop; L. Furenlid; W. Savin; W. Wilber

doi:10.1016/S0921-4534(97)01757-7

Local structural and electronic changes accompanying photodoping in YBa₂Cu₃O_6+x

T. A. Tyson, J. F. Federici, D. Chew, A. R. Bishop, L. Furenlid, W. Savin, W. Wilber

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

12 Scopus citations

Abstract

Polarized X-ray absorption measurements reveal that photodoping of oxygen deficient YBa₂Cu₃O_6+x (YBCO) produces a local axial distortion of the CuO_x chains. The broad normal state axial Cu(1)-O(4) bond distribution becomes two well-defined peaks in the photodoped state and suggest local ordering. XANES measurements reveal a transfer of hole density into the CuO₂ planes. These results support a common structure-related transport enhancement mechanism in chemically doped and photodoped high temperature superconductor systems.

Original language	English (US)
Pages (from-to)	163-170
Number of pages	8
Journal	Physica C: Superconductivity and its applications
Volume	292
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(97)01757-7
State	Published - Dec 20 1997
Externally published	Yes

Keywords

Cu-O chains
Cu-O planes
Structure of photodoping
XAFS

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4534(97)01757-7

Cite this

@article{18fdd04adbd84d59bfb904174179174b,

title = "Local structural and electronic changes accompanying photodoping in YBa2Cu3O6+x",

abstract = "Polarized X-ray absorption measurements reveal that photodoping of oxygen deficient YBa2Cu3O6+x (YBCO) produces a local axial distortion of the CuOx chains. The broad normal state axial Cu(1)-O(4) bond distribution becomes two well-defined peaks in the photodoped state and suggest local ordering. XANES measurements reveal a transfer of hole density into the CuO2 planes. These results support a common structure-related transport enhancement mechanism in chemically doped and photodoped high temperature superconductor systems.",

keywords = "Cu-O chains, Cu-O planes, Structure of photodoping, XAFS",

author = "Tyson, {T. A.} and Federici, {J. F.} and D. Chew and Bishop, {A. R.} and L. Furenlid and W. Savin and W. Wilber",

note = "Funding Information: Data acquisition was performed at the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory which is funded by the US Department of Energy. TAT acknowledges the support in part from New Jersey Institute of Technology (NJIT) Grants #421600 and #421930. We thank Prof. J. Grow of NJIT for assistance with X-ray diffraction characterization and Dr. K. Syed of NSLS for technical assistance. We are indebted to Prof. F. Bridges of the University of California at Santa Cruz for useful and stimulating discussions.",

year = "1997",

month = dec,

day = "20",

doi = "10.1016/S0921-4534(97)01757-7",

language = "English (US)",

volume = "292",

pages = "163--170",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier",

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}

TY - JOUR

T1 - Local structural and electronic changes accompanying photodoping in YBa2Cu3O6+x

AU - Tyson, T. A.

AU - Federici, J. F.

AU - Chew, D.

AU - Bishop, A. R.

AU - Furenlid, L.

AU - Savin, W.

AU - Wilber, W.

N1 - Funding Information: Data acquisition was performed at the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory which is funded by the US Department of Energy. TAT acknowledges the support in part from New Jersey Institute of Technology (NJIT) Grants #421600 and #421930. We thank Prof. J. Grow of NJIT for assistance with X-ray diffraction characterization and Dr. K. Syed of NSLS for technical assistance. We are indebted to Prof. F. Bridges of the University of California at Santa Cruz for useful and stimulating discussions.

PY - 1997/12/20

Y1 - 1997/12/20

N2 - Polarized X-ray absorption measurements reveal that photodoping of oxygen deficient YBa2Cu3O6+x (YBCO) produces a local axial distortion of the CuOx chains. The broad normal state axial Cu(1)-O(4) bond distribution becomes two well-defined peaks in the photodoped state and suggest local ordering. XANES measurements reveal a transfer of hole density into the CuO2 planes. These results support a common structure-related transport enhancement mechanism in chemically doped and photodoped high temperature superconductor systems.

AB - Polarized X-ray absorption measurements reveal that photodoping of oxygen deficient YBa2Cu3O6+x (YBCO) produces a local axial distortion of the CuOx chains. The broad normal state axial Cu(1)-O(4) bond distribution becomes two well-defined peaks in the photodoped state and suggest local ordering. XANES measurements reveal a transfer of hole density into the CuO2 planes. These results support a common structure-related transport enhancement mechanism in chemically doped and photodoped high temperature superconductor systems.

KW - Cu-O chains

KW - Cu-O planes

KW - Structure of photodoping

KW - XAFS

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

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