Aspects of nodal superconductivity

Hyekyung Won; David Parker; Stephan Haas; Kazumi Maki

doi:10.1016/j.cap.2004.01.011

Aspects of nodal superconductivity

Hyekyung Won, David Parker, Stephan Haas, Kazumi Maki

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Until recently, the precise gap function Δ(k) of many nodal superconductors has been unknown. The most notable exception are the high-temperature cuprate superconductors for which angular resolved photoemission spectroscopy and Josephson interferometry have succeeded to clearly identify d_x ²-y²-wave symmetry. Unfortunately, it has turned out to be difficult to apply these methods to some of the other nodal superconductors. Recently it has been recognized that the quasiparticle spectrum of nodal superconductors in the vortex state is very sensitive to the symmetry of the gap function. In particular, Izawa et al. have succeeded in identifying an f-wave order parameter in Sr₂RuO₄, d_x ²-y²-wave order in CeCoIn₅ and κ-(ET)₂Cu(NCS)₂, and s + g-wave superconductivity in YNi₂B₂C and PrOs₄Sb₁₂. In this paper we review some of the surprises that were encountered in this exploration.

Original language	English
Pages (from-to)	523-528
Number of pages	6
Journal	Current Applied Physics
Volume	4
Issue number	5
DOIs	https://doi.org/10.1016/j.cap.2004.01.011
State	Published - Aug 2004
Externally published	Yes

Funding

We are grateful for useful discussions with P. Thalmeier, K. Kamata, K. Izawa, and Y. Matsuda. K. Maki is grateful for the hospitality of the Max-Planck Institute for the Physics of Complex Systems at Dresden, where part of this work was performed. S. Haas acknowledges financial support by the National Science Foundation, DMR-0089882.

Keywords

Gap symmetry
Nodal superconductivity
PrOs Sb
S+g-wave superconductivity
Sr RuO
YNiBC

Access to Document

10.1016/j.cap.2004.01.011

Cite this

@article{0befb634c4ae4828ab24e8d3036f3a8e,

title = "Aspects of nodal superconductivity",

abstract = "Until recently, the precise gap function Δ(k) of many nodal superconductors has been unknown. The most notable exception are the high-temperature cuprate superconductors for which angular resolved photoemission spectroscopy and Josephson interferometry have succeeded to clearly identify dx 2-y2-wave symmetry. Unfortunately, it has turned out to be difficult to apply these methods to some of the other nodal superconductors. Recently it has been recognized that the quasiparticle spectrum of nodal superconductors in the vortex state is very sensitive to the symmetry of the gap function. In particular, Izawa et al. have succeeded in identifying an f-wave order parameter in Sr2RuO4, dx 2-y2-wave order in CeCoIn5 and κ-(ET)2Cu(NCS)2, and s + g-wave superconductivity in YNi2B2C and PrOs4Sb12. In this paper we review some of the surprises that were encountered in this exploration.",

keywords = "Gap symmetry, Nodal superconductivity, PrOs Sb, S+g-wave superconductivity, Sr RuO, YNiBC",

author = "Hyekyung Won and David Parker and Stephan Haas and Kazumi Maki",

year = "2004",

month = aug,

doi = "10.1016/j.cap.2004.01.011",

language = "English",

volume = "4",

pages = "523--528",

journal = "Current Applied Physics",

issn = "1567-1739",

publisher = "Elsevier",

number = "5",

}

TY - JOUR

T1 - Aspects of nodal superconductivity

AU - Won, Hyekyung

AU - Parker, David

AU - Haas, Stephan

AU - Maki, Kazumi

PY - 2004/8

Y1 - 2004/8

N2 - Until recently, the precise gap function Δ(k) of many nodal superconductors has been unknown. The most notable exception are the high-temperature cuprate superconductors for which angular resolved photoemission spectroscopy and Josephson interferometry have succeeded to clearly identify dx 2-y2-wave symmetry. Unfortunately, it has turned out to be difficult to apply these methods to some of the other nodal superconductors. Recently it has been recognized that the quasiparticle spectrum of nodal superconductors in the vortex state is very sensitive to the symmetry of the gap function. In particular, Izawa et al. have succeeded in identifying an f-wave order parameter in Sr2RuO4, dx 2-y2-wave order in CeCoIn5 and κ-(ET)2Cu(NCS)2, and s + g-wave superconductivity in YNi2B2C and PrOs4Sb12. In this paper we review some of the surprises that were encountered in this exploration.

AB - Until recently, the precise gap function Δ(k) of many nodal superconductors has been unknown. The most notable exception are the high-temperature cuprate superconductors for which angular resolved photoemission spectroscopy and Josephson interferometry have succeeded to clearly identify dx 2-y2-wave symmetry. Unfortunately, it has turned out to be difficult to apply these methods to some of the other nodal superconductors. Recently it has been recognized that the quasiparticle spectrum of nodal superconductors in the vortex state is very sensitive to the symmetry of the gap function. In particular, Izawa et al. have succeeded in identifying an f-wave order parameter in Sr2RuO4, dx 2-y2-wave order in CeCoIn5 and κ-(ET)2Cu(NCS)2, and s + g-wave superconductivity in YNi2B2C and PrOs4Sb12. In this paper we review some of the surprises that were encountered in this exploration.

KW - Gap symmetry

KW - Nodal superconductivity

KW - PrOs Sb

KW - S+g-wave superconductivity

KW - Sr RuO

KW - YNiBC

UR - http://www.scopus.com/inward/record.url?scp=3242801404&partnerID=8YFLogxK

U2 - 10.1016/j.cap.2004.01.011

DO - 10.1016/j.cap.2004.01.011

M3 - Article

AN - SCOPUS:3242801404

SN - 1567-1739

VL - 4

SP - 523

EP - 528

JO - Current Applied Physics

JF - Current Applied Physics

IS - 5

ER -

Aspects of nodal superconductivity

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this