Density of states and the energy gap in superconducting cuprates

doi:https://doi.org/10.1103/PhysRevB.56.7878

Title: Density of states and the energy gap in superconducting cuprates

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Abstract

The superconducting density of states for the cuprates, particularly for the Y-Ba-Cu-O compound, has been evaluated, and its dependence on temperature and the oxygen content has been analyzed. The analysis is based on the two-gap model. Moreover, the magnetic scattering and corresponding pair-breaking effect, correlated with the oxygen depletion, is taken into account as a key factor. The temperature dependencies of the energy gaps are calculated. Intensive magnetic scattering leads to gaplessness. The calculation allows us to describe various experimental data. {copyright} {ital 1997} {ital The American Physical Society}

Authors:

Adrian, S D; Wolf, S A ^[1]; Dolgov, O ^[2]; Shulga, S ^[3]; Kresin, V Z ^[4]

Naval Research Laboratory, Washington, DC 20375-5000 (United States)
P. Lebedev Physical Institute, 117924, Moscow (Russia)
Institute of Spectroscopy, 142092, Troitsk (Russia)
Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)

Publication Date:: 1997-10-01

OSTI Identifier:: 632589

Resource Type:: Journal Article

Journal Name:: Physical Review, B: Condensed Matter

Additional Journal Information:: Journal Volume: 56; Journal Issue: 13; Other Information: PBD: Oct 1997

Country of Publication:: United States

Language:: English

Subject:: 66 PHYSICS; 36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; ENERGY GAP; ENERGY-LEVEL DENSITY; YTTRIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; STOICHIOMETRY

Citation Formats


                    Adrian, S D, Wolf, S A, Dolgov, O, Shulga, S, and Kresin, V Z. Density of states and the energy gap in superconducting cuprates.  United States: N. p., 1997. 
        Web.  doi:10.1103/PhysRevB.56.7878.

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                    Adrian, S D, Wolf, S A, Dolgov, O, Shulga, S, & Kresin, V Z. Density of states and the energy gap in superconducting cuprates.  United States.  https://doi.org/10.1103/PhysRevB.56.7878

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                    Adrian, S D, Wolf, S A, Dolgov, O, Shulga, S, and Kresin, V Z. Wed .  
        "Density of states and the energy gap in superconducting cuprates".  United States.  https://doi.org/10.1103/PhysRevB.56.7878.

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@article{osti_632589,

  title        = {Density of states and the energy gap in superconducting cuprates},

  author       = {Adrian, S D and Wolf, S A and Dolgov, O and Shulga, S and Kresin, V Z},

  abstractNote = {The superconducting density of states for the cuprates, particularly for the Y-Ba-Cu-O compound, has been evaluated, and its dependence on temperature and the oxygen content has been analyzed. The analysis is based on the two-gap model. Moreover, the magnetic scattering and corresponding pair-breaking effect, correlated with the oxygen depletion, is taken into account as a key factor. The temperature dependencies of the energy gaps are calculated. Intensive magnetic scattering leads to gaplessness. The calculation allows us to describe various experimental data. {copyright} {ital 1997} {ital The American Physical Society}},

  doi          = {10.1103/PhysRevB.56.7878},

  url          = {https://www.osti.gov/biblio/632589},
  journal      = {Physical Review, B: Condensed Matter},
number       = 13,

  volume       = 56,

  place        = {United States},

  year         = {1997},

  month        = {10}

}

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