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Absence of Magnetic Field Dependence of the Anomalous Bond-Stretching Phonon in YBa2Cu3O6.6

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Abstract

Superlattice diffraction peaks have been recently observed in underdoped YBa2Cu3O6.6. They have been interpreted to originate from a charge density wave (CDW) formation. It is believed that strong phonon anomalies previously observed near the same wavevectors are related to the CDW. Competition with superconductivity is a salient feature of the CDW peaks. We investigated if the same is true of anomalous bond-stretching phonons around 60 meV by measuring the spectrum of this phonon at 10 K with and without an applied magnetic field of 10 T. Applying the field had no effect on the phonon within the experimental uncertainty.

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Acknowledgments

D. R. was supported by the DOE, Office of Basic Energy Sciences, Office of Science, under Contract No. DE-SC0006939.

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Authors and Affiliations

  1. Department of Physics, University of Colorado-Boulder, Boulder, CO, 80309, USA

    D. Reznik

  2. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA

    D. Parshall & J. W. Lynn

  3. Department of Physics, Incheon National University, Incheon, 406-772, Korea

    S. R. Park

  4. Institute of Solid State Physics, Karlsruhe Institute of Technology, 76021, Karlsruhe, Germany

    Th. Wolf

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  1. D. Reznik
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  2. D. Parshall
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  3. S. R. Park
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  4. J. W. Lynn
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  5. Th. Wolf
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Correspondence to D. Reznik.

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Reznik, D., Parshall, D., Park, S.R. et al. Absence of Magnetic Field Dependence of the Anomalous Bond-Stretching Phonon in YBa2Cu3O6.6 . J Supercond Nov Magn 29, 643–644 (2016). https://doi.org/10.1007/s10948-015-3293-1

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  • DOI: https://doi.org/10.1007/s10948-015-3293-1

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