Angular Dependence of the Nonlinear Transverse Magnetic Moment of YBCO in the Meissner state
Anand Bhattacharya; Igor Zutic; Oriol T. Valls; Allen M. Goldman; Ulrich Welp; Boyd Veal · 1998 · arXiv
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
The finding, in one line
“Implications of this null result for the existence of a non-zero gap at all angles on the Fermi surface are discussed.”
Abstract (excerpt)
The angular dependence of the nonlinear transverse magnetic moment of untwinned high-quality single crystals of optimally doped YBCO have been studied at a temperature of 2.5K using a low frequency AC technique. The absence of any signature at angular period 2π/4is analyzed in light of the numerical predictions of such a signal for a pure d-wave order parameter with line nodes. Implications of this null result for the existence of a non-zero gap at all angles on the Fermi surface are discussed.
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Metadata source: arXiv