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

Conference · Wed May 13 00:00:00 EDT 1998

OSTI ID:296776

Balatsky, A V ^[1]

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1. Los Alamos National Lab., NM (United States)

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.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 296776
• Report Number(s): LA-UR-98-2174; CONF-980684-; ON: DE99000738; TRN: 99:002460
• Resource Relation: Conference: International conference on stripes and high T{sub c} superconductivity, Rome (Italy), 2-6 Jun 1998; Other Information: PBD: 13 May 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
D WAVES
HIGH-TC SUPERCONDUCTORS
ORDER PARAMETERS
STABILITY
L-S COUPLING
T INVARIANCE
P INVARIANCE
SUPERCONDUCTIVITY
IMPURITIES