The symmetry of the superconducting order parameter in PuCoGa$_5

The symmetry of the superconducting order parameter in PuCoGa$_5

The symmetry of the superconducting order parameter in single-crystalline PuCoGa$_5$ ($T_{\rm c} = 18.5$ K) is investigated via zero- and transverse- field muon spin relaxation ($\mu$SR) measurements, probing the possible existence of orbital and/or spin moments (time reversal-symmetry violation TRV...

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Hauptverfasser: Morris, G. D, Heffner, R. H, Bauer, E. D, Morales, L. A, Sarrao, J. S, Fluss, M. J, MacLaughlin, D. E, Shu, L, Anderson, J. E
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Physics - Strongly Correlated Electrons
Physics - Superconductivity
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creator Morris, G. D
Heffner, R. H
Bauer, E. D
Morales, L. A
Sarrao, J. S
Fluss, M. J
MacLaughlin, D. E
Shu, L
Anderson, J. E
description The symmetry of the superconducting order parameter in single-crystalline PuCoGa$_5$ ($T_{\rm c} = 18.5$ K) is investigated via zero- and transverse- field muon spin relaxation ($\mu$SR) measurements, probing the possible existence of orbital and/or spin moments (time reversal-symmetry violation TRV) associated with the superconducting phase and the in-plane magnetic-field penetration depth $\lambda(T)$ in the mixed state, respectively. We find no evidence for TRV, and show that the superfluid density, or alternatively, $\Delta\lambda(T) = \lambda(T) - \lambda(0)$, are $\propto T$ for $T/T_{\rm c} \leq 0.5$. Taken together these measurements are consistent with an even-parity (pseudo-spin singlet), d-wave pairing state.
doi_str_mv 10.48550/arxiv.cond-mat/0501348
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Physics - Superconductivity
title The symmetry of the superconducting order parameter in PuCoGa$_5
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