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Laube, F.; Goll, G.; Loehneysen, H. v.; Lichtenberg, F.

doi:10.1023/a:1022599229331

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2003

2009

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Cited by 6 publications

(2 citation statements)

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“…The second experiment, by Upward et al 25 performed c-axis STM using a Pt/Ir tip and found clear evidence of a superconducting gap. The third experiment, by Laube et al 27 , observed a weak Andreev reflection signal, as well as a zero-bias anomaly. Of issue for our proposed experiment is the extremely large zero-bias conductance -approximately 0.85 the normal-state value in the Upward et al data.…”

Section: Calculationmentioning

confidence: 93%

Proposed experiment: out-of-plane nodal lines in Sr$_{2}$RuO$_{4}$

Parker

2009

Preprint

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Since the original proposal of an unconventional chiral order parameter in the ruthenate perovskite superconductor Sr 2 RuO 4 , much attention has been given to the possibility of out-of-plane nodal lines on the predominant γ cylindrical Fermi surface given evidence for low-lying quasiparticle excitations in this material. Here I propose a tunneling spectroscopy experiment to determine whether such nodal lines in fact exist.

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Section: Calculationmentioning

confidence: 93%

Proposed experiment: out-of-plane nodal lines in Sr$_{2}$RuO$_{4}$

Parker

2009

Preprint

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“…2 shows the occurrence of this conductance dip at T ¼ 1:57 K (a) with increasing field and its temperature dependence at B ¼ 2 T: The dip signals insulating behavior, but its origin is not yet understood. Several scenarios, including magnetic or Kondo-type origin, a lattice distortion at the surface or a structural instability of Sr 2 RuO 4 ; have been discussed [11]. A field-induced structural instability at the surface seems the most promising candidate, but further work is necessary for a definite assignment.…”

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confidence: 99%