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arXiv · 1206.1632

Increase of superconducting order parameter in the magnetic superconductor Dy0.6Y0.4Rh3.85Ru0.15B4 in a wide magnetic field range. Is it a further candidate in p-wave superconductors?

L. F. Rybaltchenko·E. V. Khristenko·L. A. Ishchenko·A. V. Terekhov·I. V. Zolochevskii·E. P. Khlybov·A. J. Zaleski
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Abstract

The Andreev reflection spectra were studied for the first time in the magnetic superconductor Dy0.6Y0.4Rh3.85Ru0.15B4. It is found that an external magnetic field (up to 0.7 Hc2) is a strong stimulator of superconductivity in contrast with traditional superconductors with a singlet pairing. The ratio 2Δ/kBTc \approx 4.0 obtained for some contacts is higher than the value 3.52 which is typical of conventional superconductors with a weak electron-phonon interaction. It has been proposed that in Dy0.6Y0.4Rh3.85Ru0.15B4 a triplet mechanism of superconducting pairing is realized.

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L. F. Rybaltchenko, E. V. Khristenko, L. A. Ishchenko, A. V. Terekhov, I. V. Zolochevskii, E. P. Khlybov, A. J. Zaleski. 2012-06-07. Increase of superconducting order parameter in the magnetic superconductor Dy0.6Y0.4Rh3.85Ru0.15B4 in a wide magnetic field range. Is it a further candidate in p-wave superconductors?. https://arxiv.org/abs/1206.1632

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