Gap structure and exotic superconducting state of URu2Si 2

Y. Kasahara; T. Iwasawa; H. Shishido; T. Shibauchi; K. Behnia; D. Matsuda; Y. Haga; Y. Onuki; M. Sigrist; Y. Matsuda

doi:10.1088/1742-6596/150/5/052098

Gap structure and exotic superconducting state of URu₂Si ₂

Y. Kasahara
, T. Iwasawa
, H. Shishido
, T. Shibauchi
, K. Behnia
, D. Matsuda
, Y. Haga
, Y. Onuki
, M. Sigrist
, Y. Matsuda

Kyoto University
Tohoku University
PSL Research University
Japan Atomic Energy Agency
Osaka University
ETH Zurich
University of Tokyo

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The heavy-fermion compound URu₂Si₂ has mystified researchers since the superconducting state coexists with enigmatic "hidden order" phase. In order to elucidate the superconducting gap function of URu₂Si₂, we performed the thermal transport measurements at low temperatures on ultraclean single crystals of URu₂Si ₂. The results provide strong evidence for a new type of unconventional superconducting state, having two distinct gaps with different nodal topologies. We propose a gap function with chiral d-wave form Δ_k ∝ k_z(k_x ± ik_y).

langue originale	Anglais
Numéro d'article	052098
journal	Journal of Physics: Conference Series
Volume	150
Numéro de publication	5
Les DOIs	https://doi.org/10.1088/1742-6596/150/5/052098
état	Publié - 1 janv. 2009
Modification externe	Oui

Accès au document

10.1088/1742-6596/150/5/052098

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abstract = "The heavy-fermion compound URu2Si2 has mystified researchers since the superconducting state coexists with enigmatic {"}hidden order{"} phase. In order to elucidate the superconducting gap function of URu2Si2, we performed the thermal transport measurements at low temperatures on ultraclean single crystals of URu2Si 2. The results provide strong evidence for a new type of unconventional superconducting state, having two distinct gaps with different nodal topologies. We propose a gap function with chiral d-wave form Δk ∝ kz(kx ± iky).",

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T1 - Gap structure and exotic superconducting state of URu2Si 2

AU - Kasahara, Y.

AU - Iwasawa, T.

AU - Shishido, H.

AU - Shibauchi, T.

AU - Behnia, K.

AU - Matsuda, D.

AU - Haga, Y.

AU - Onuki, Y.

AU - Sigrist, M.

AU - Matsuda, Y.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - The heavy-fermion compound URu2Si2 has mystified researchers since the superconducting state coexists with enigmatic "hidden order" phase. In order to elucidate the superconducting gap function of URu2Si2, we performed the thermal transport measurements at low temperatures on ultraclean single crystals of URu2Si 2. The results provide strong evidence for a new type of unconventional superconducting state, having two distinct gaps with different nodal topologies. We propose a gap function with chiral d-wave form Δk ∝ kz(kx ± iky).

AB - The heavy-fermion compound URu2Si2 has mystified researchers since the superconducting state coexists with enigmatic "hidden order" phase. In order to elucidate the superconducting gap function of URu2Si2, we performed the thermal transport measurements at low temperatures on ultraclean single crystals of URu2Si 2. The results provide strong evidence for a new type of unconventional superconducting state, having two distinct gaps with different nodal topologies. We propose a gap function with chiral d-wave form Δk ∝ kz(kx ± iky).

UR - https://www.scopus.com/pages/publications/77952490284

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DO - 10.1088/1742-6596/150/5/052098

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VL - 150

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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