Marginal stability of d-wave superconductor: Spontaneous P and T violation in the presence of magnetic impurities

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The author argues that the d{sub x{sup 2}{minus}y{sup 2}}-wave superconductor is marginally stable in the presence of external perturbations. Subjected to the external perturbations by magnetic impurities, it develops a secondary component of the gap, complex d{sub xy}, to maximize the coupling to impurities and lower the total energy. The secondary d{sub xy} component exists at high temperatures and produces the full gap {approximately} 20K in the single particle spectrum around each impurity, apart from impurity induced broadening. At low temperatures the phase ordering transition into global d{sub x{sup 2}{minus}y{sup 2}} + id{sub xy} state occurs.

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4 p.

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Balatsky, A.V. May 13, 1998.

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The author argues that the d{sub x{sup 2}{minus}y{sup 2}}-wave superconductor is marginally stable in the presence of external perturbations. Subjected to the external perturbations by magnetic impurities, it develops a secondary component of the gap, complex d{sub xy}, to maximize the coupling to impurities and lower the total energy. The secondary d{sub xy} component exists at high temperatures and produces the full gap {approximately} 20K in the single particle spectrum around each impurity, apart from impurity induced broadening. At low temperatures the phase ordering transition into global d{sub x{sup 2}{minus}y{sup 2}} + id{sub xy} state occurs.

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4 p.

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INIS; OSTI as DE99000738

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  • International conference on stripes and high T{sub c} superconductivity, Rome (Italy), 2-6 Jun 1998

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  • Other: DE99000738
  • Report No.: LA-UR--98-2174
  • Report No.: CONF-980684--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 296776
  • Archival Resource Key: ark:/67531/metadc679008

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Office of Scientific & Technical Information Technical Reports

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  • May 13, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Feb. 29, 2016, 4:05 p.m.

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Balatsky, A.V. Marginal stability of d-wave superconductor: Spontaneous P and T violation in the presence of magnetic impurities, article, May 13, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc679008/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.