Zero-field μSR study of YBa2Cu3O6+x, x ≥ 0.67: Evidence for charge ordering

J. E. Sonier; J. H. Brewer; R. F. Kiefl; R. Miller; R. H. Heffner; K. F. Poon; G. D. Morris; W. N. Hardy; R. Liang; D. A. Bonn; J. S. Gardner; C. E. Stronach

doi:10.1016/S0921-4526(02)01642-3

Zero-field μSR study of YBa₂Cu₃O_6+x, x ≥ 0.67: Evidence for charge ordering

J. E. Sonier, J. H. Brewer, R. F. Kiefl, R. Miller, R. H. Heffner, K. F. Poon, G. D. Morris, W. N. Hardy, R. Liang, D. A. Bonn, J. S. Gardner, C. E. Stronach

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

Abstract

Zero-field (ZF) μSR measurements were performed on single crystals of the high temperature superconductor YBa₂Cu₃O_6+x, for x ≥ 0.67. Contrary to early ZF-μSR studies, we find that the muon-spin relaxation function evolves significantly as a function of temperature and oxygen content. The relaxation rate of the ZF-μSR time spectra exhibits a local minimum near 55 K and a subsequent increase with decreasing temperature. These features weaken considerably with decreasing x. A comparison to the results of nuclear quadrupole resonance experiments on highly doped samples suggests that these observations are associated with the build up of long-range charge correlations and not spontaneous orbital moments as suggested by Sonier et al. (Science 292 (2001) 1692).

Original language	English
Pages (from-to)	312-315
Number of pages	4
Journal	Physica B: Physics of Condensed Matter
Volume	326
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4526(02)01642-3
State	Published - Feb 2003
Externally published	Yes

Funding

This work was supported in part by NSERC, the Canadian Institute for Advanced Research and the US DOE.

Funders	Funder number
U.S. Department of Energy
Canadian Institute for Advanced Research
Natural Sciences and Engineering Research Council of Canada

Keywords

Charge ordering
High-temperature superconductors
Zero-field μSR

Access to Document

10.1016/S0921-4526(02)01642-3

Cite this

@article{ebb9677701dd4155b65e4da1d8df5269,

title = "Zero-field μSR study of YBa2Cu3O6+x, x ≥ 0.67: Evidence for charge ordering",

abstract = "Zero-field (ZF) μSR measurements were performed on single crystals of the high temperature superconductor YBa2Cu3O6+x, for x ≥ 0.67. Contrary to early ZF-μSR studies, we find that the muon-spin relaxation function evolves significantly as a function of temperature and oxygen content. The relaxation rate of the ZF-μSR time spectra exhibits a local minimum near 55 K and a subsequent increase with decreasing temperature. These features weaken considerably with decreasing x. A comparison to the results of nuclear quadrupole resonance experiments on highly doped samples suggests that these observations are associated with the build up of long-range charge correlations and not spontaneous orbital moments as suggested by Sonier et al. (Science 292 (2001) 1692).",

keywords = "Charge ordering, High-temperature superconductors, Zero-field μSR",

author = "Sonier, {J. E.} and Brewer, {J. H.} and Kiefl, {R. F.} and R. Miller and Heffner, {R. H.} and Poon, {K. F.} and Morris, {G. D.} and Hardy, {W. N.} and R. Liang and Bonn, {D. A.} and Gardner, {J. S.} and Stronach, {C. E.}",

year = "2003",

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doi = "10.1016/S0921-4526(02)01642-3",

language = "English",

volume = "326",

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journal = "Physica B: Physics of Condensed Matter",

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TY - JOUR

T1 - Zero-field μSR study of YBa2Cu3O6+x, x ≥ 0.67

T2 - Evidence for charge ordering

AU - Sonier, J. E.

AU - Brewer, J. H.

AU - Kiefl, R. F.

AU - Miller, R.

AU - Heffner, R. H.

AU - Poon, K. F.

AU - Morris, G. D.

AU - Hardy, W. N.

AU - Liang, R.

AU - Bonn, D. A.

AU - Gardner, J. S.

AU - Stronach, C. E.

PY - 2003/2

Y1 - 2003/2

N2 - Zero-field (ZF) μSR measurements were performed on single crystals of the high temperature superconductor YBa2Cu3O6+x, for x ≥ 0.67. Contrary to early ZF-μSR studies, we find that the muon-spin relaxation function evolves significantly as a function of temperature and oxygen content. The relaxation rate of the ZF-μSR time spectra exhibits a local minimum near 55 K and a subsequent increase with decreasing temperature. These features weaken considerably with decreasing x. A comparison to the results of nuclear quadrupole resonance experiments on highly doped samples suggests that these observations are associated with the build up of long-range charge correlations and not spontaneous orbital moments as suggested by Sonier et al. (Science 292 (2001) 1692).

AB - Zero-field (ZF) μSR measurements were performed on single crystals of the high temperature superconductor YBa2Cu3O6+x, for x ≥ 0.67. Contrary to early ZF-μSR studies, we find that the muon-spin relaxation function evolves significantly as a function of temperature and oxygen content. The relaxation rate of the ZF-μSR time spectra exhibits a local minimum near 55 K and a subsequent increase with decreasing temperature. These features weaken considerably with decreasing x. A comparison to the results of nuclear quadrupole resonance experiments on highly doped samples suggests that these observations are associated with the build up of long-range charge correlations and not spontaneous orbital moments as suggested by Sonier et al. (Science 292 (2001) 1692).

KW - Charge ordering

KW - High-temperature superconductors

KW - Zero-field μSR

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