Search for time-reversal symmetry breaking order at the (1 1 0) interface of YBa2 Cu3 O7 - δ using β NMR

H. Saadaoui; G. D. Morris; K. H. Chow; M. D. Hossain; C. D.P. Levy; T. J. Parolin; M. R. Pearson; Z. Salman; M. Smadella; Q. Song; D. Wang; P. J. Hentges; L. H. Greene; R. F. Kiefl; W. A. MacFarlane

doi:10.1016/j.physb.2008.11.188

Search for time-reversal symmetry breaking order at the (1 1 0) interface of YBa₂ Cu₃ O_{7 - δ} using β NMR

H. Saadaoui, G. D. Morris, K. H. Chow, M. D. Hossain, C. D.P. Levy, T. J. Parolin, M. R. Pearson, Z. Salman, M. Smadella, Q. Song, D. Wang, P. J. Hentges, L. H. Greene, R. F. Kiefl, W. A. MacFarlane

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

Abstract

In this paper, we report initial β NMR measurements seeking the spontaneous magnetic fields associated with a time-reversal symmetry breaking (TRSB) order at the (1 1 0) interface of the high temperature superconductor YBa₂ Cu₃ O_{7 - δ} (YBCO). A 2 keV beam of highly spin-polarized ⁸Li⁺ was implanted into a thin overlayer of silver sputtered onto an oriented YBCO film. The NMR of ⁸Li in the Ag layer showed additional broadening with an onset below the superconducting transition temperature T_c. This is evidence of spontaneous disordered magnetism which could be associated with TRSB order.

Original language	English (US)
Pages (from-to)	724-726
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	404
Issue number	5-7
DOIs	https://doi.org/10.1016/j.physb.2008.11.188
State	Published - Apr 15 2009
Externally published	Yes

Keywords

β NMR
Time-reversal symmetry breaking
YBa Cu O

ASJC Scopus subject areas

Condensed Matter Physics
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Online availability

10.1016/j.physb.2008.11.188

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Cite this

Saadaoui, H., Morris, G. D., Chow, K. H., Hossain, M. D., Levy, C. D. P., Parolin, T. J., Pearson, M. R., Salman, Z., Smadella, M., Song, Q., Wang, D., Hentges, P. J., Greene, L. H., Kiefl, R. F., & MacFarlane, W. A. (2009). Search for time-reversal symmetry breaking order at the (1 1 0) interface of YBa₂ Cu₃ O_{7 - δ} using β NMR. Physica B: Condensed Matter, 404(5-7), 724-726. https://doi.org/10.1016/j.physb.2008.11.188

Saadaoui, H, Morris, GD, Chow, KH, Hossain, MD, Levy, CDP, Parolin, TJ, Pearson, MR, Salman, Z, Smadella, M, Song, Q, Wang, D, Hentges, PJ, Greene, LH, Kiefl, RF & MacFarlane, WA 2009, 'Search for time-reversal symmetry breaking order at the (1 1 0) interface of YBa₂ Cu₃ O_{7 - δ} using β NMR', Physica B: Condensed Matter, vol. 404, no. 5-7, pp. 724-726. https://doi.org/10.1016/j.physb.2008.11.188

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title = "Search for time-reversal symmetry breaking order at the (1 1 0) interface of YBa2 Cu3 O7 - δ using β NMR",

abstract = "In this paper, we report initial β NMR measurements seeking the spontaneous magnetic fields associated with a time-reversal symmetry breaking (TRSB) order at the (1 1 0) interface of the high temperature superconductor YBa2 Cu3 O7 - δ (YBCO). A 2 keV beam of highly spin-polarized 8Li+ was implanted into a thin overlayer of silver sputtered onto an oriented YBCO film. The NMR of 8Li in the Ag layer showed additional broadening with an onset below the superconducting transition temperature Tc. This is evidence of spontaneous disordered magnetism which could be associated with TRSB order.",

keywords = "β NMR, Time-reversal symmetry breaking, YBa Cu O",

author = "H. Saadaoui and Morris, {G. D.} and Chow, {K. H.} and Hossain, {M. D.} and Levy, {C. D.P.} and Parolin, {T. J.} and Pearson, {M. R.} and Z. Salman and M. Smadella and Q. Song and D. Wang and Hentges, {P. J.} and Greene, {L. H.} and Kiefl, {R. F.} and MacFarlane, {W. A.}",

note = "Funding Information: We thank R. Abasalti, S. Daviel, D. Arseneau and Wan Kyu Park for technical assistance and W. Eckstein for the TRIM.SP code. This work is supported by NSERC, and NRC, Canada through a contribution to TRIUMF. Sample preparation at Urbana is supported by the US DoE, (DEFG02-ER9645439), through the Frederick Seitz Materials Research Laboratory, and NSF DMR 99-72087.",

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doi = "10.1016/j.physb.2008.11.188",

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AU - Saadaoui, H.

AU - Morris, G. D.

AU - Chow, K. H.

AU - Hossain, M. D.

AU - Levy, C. D.P.

AU - Parolin, T. J.

AU - Pearson, M. R.

AU - Salman, Z.

AU - Smadella, M.

AU - Song, Q.

AU - Wang, D.

AU - Hentges, P. J.

AU - Greene, L. H.

AU - Kiefl, R. F.

AU - MacFarlane, W. A.

N1 - Funding Information: We thank R. Abasalti, S. Daviel, D. Arseneau and Wan Kyu Park for technical assistance and W. Eckstein for the TRIM.SP code. This work is supported by NSERC, and NRC, Canada through a contribution to TRIUMF. Sample preparation at Urbana is supported by the US DoE, (DEFG02-ER9645439), through the Frederick Seitz Materials Research Laboratory, and NSF DMR 99-72087.

PY - 2009/4/15

Y1 - 2009/4/15

N2 - In this paper, we report initial β NMR measurements seeking the spontaneous magnetic fields associated with a time-reversal symmetry breaking (TRSB) order at the (1 1 0) interface of the high temperature superconductor YBa2 Cu3 O7 - δ (YBCO). A 2 keV beam of highly spin-polarized 8Li+ was implanted into a thin overlayer of silver sputtered onto an oriented YBCO film. The NMR of 8Li in the Ag layer showed additional broadening with an onset below the superconducting transition temperature Tc. This is evidence of spontaneous disordered magnetism which could be associated with TRSB order.

AB - In this paper, we report initial β NMR measurements seeking the spontaneous magnetic fields associated with a time-reversal symmetry breaking (TRSB) order at the (1 1 0) interface of the high temperature superconductor YBa2 Cu3 O7 - δ (YBCO). A 2 keV beam of highly spin-polarized 8Li+ was implanted into a thin overlayer of silver sputtered onto an oriented YBCO film. The NMR of 8Li in the Ag layer showed additional broadening with an onset below the superconducting transition temperature Tc. This is evidence of spontaneous disordered magnetism which could be associated with TRSB order.

KW - β NMR

KW - Time-reversal symmetry breaking

KW - YBa Cu O

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