Electronic theory for superconductivity in Sr2RuO4: Triplet pairing due to spin-fluctuation exchange

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Electronic theory for superconductivity in Sr2RuO4 : Triplet pairing due to spin-fluctuation exchange. / Eremin, I.; Manske, D.; Joas, C.; Bennemann, K. H.

In: Europhysics Letters, Vol. 58, No. 6, 19.08.2002, p. 871-877.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Eremin, I, Manske, D, Joas, C & Bennemann, KH 2002, 'Electronic theory for superconductivity in Sr2RuO4: Triplet pairing due to spin-fluctuation exchange', Europhysics Letters, vol. 58, no. 6, pp. 871-877. https://doi.org/10.1209/epl/i2002-00455-9

APA

Eremin, I., Manske, D., Joas, C., & Bennemann, K. H. (2002). Electronic theory for superconductivity in Sr2RuO4: Triplet pairing due to spin-fluctuation exchange. Europhysics Letters, 58(6), 871-877. https://doi.org/10.1209/epl/i2002-00455-9

Vancouver

Eremin I, Manske D, Joas C, Bennemann KH. Electronic theory for superconductivity in Sr2RuO4: Triplet pairing due to spin-fluctuation exchange. Europhysics Letters. 2002 Aug 19;58(6):871-877. https://doi.org/10.1209/epl/i2002-00455-9

Author

Eremin, I. ; Manske, D. ; Joas, C. ; Bennemann, K. H. / Electronic theory for superconductivity in Sr2RuO4 : Triplet pairing due to spin-fluctuation exchange. In: Europhysics Letters. 2002 ; Vol. 58, No. 6. pp. 871-877.

Bibtex

@article{257bdab5fbbc47fd82597134b0feb658,
title = "Electronic theory for superconductivity in Sr2RuO4: Triplet pairing due to spin-fluctuation exchange",
abstract = "Using a Hubbard Hamiltonian for the three electronic bands crossing the Fermi level in Sr2RuO4, we calculate the band structure and spin susceptibility χ(q, w) in quantitative agreement with nuclear magnetic resonance (NMR) and inelastic neutron scattering (INS) experiments. The susceptibility has two peaks at Qi = (2π/3a, 2π/3a, 0) due to the nesting Fermi surface properties and at qi = (0.2π/a, 0, 0) due to the tendency towards ferromagnetism. Applying spin-fluctuation exchange theory as in layered cuprates we determine from χ(q,w), electronic dispersions, and Fermi surface topology that superconductivity in Sr2RuO4 consists of triplet pairing. Using X(q, w) we can exclude s- and d-wave symmetry for the superconducting order parameter. Furthermore, within our analysis and approximations we find that the order parameter will have a node between neighboring RuO2-planes and that in the RuO2-plane fx2-y2-wave and p-wave symmetry are close in energy.",
author = "I. Eremin and D. Manske and C. Joas and Bennemann, {K. H.}",
year = "2002",
month = aug,
day = "19",
doi = "10.1209/epl/i2002-00455-9",
language = "English",
volume = "58",
pages = "871--877",
journal = "Lettere Al Nuovo Cimento",
issn = "0295-5075",
publisher = "IOP Publishing",
number = "6",

}

RIS

TY - JOUR

T1 - Electronic theory for superconductivity in Sr2RuO4

T2 - Triplet pairing due to spin-fluctuation exchange

AU - Eremin, I.

AU - Manske, D.

AU - Joas, C.

AU - Bennemann, K. H.

PY - 2002/8/19

Y1 - 2002/8/19

N2 - Using a Hubbard Hamiltonian for the three electronic bands crossing the Fermi level in Sr2RuO4, we calculate the band structure and spin susceptibility χ(q, w) in quantitative agreement with nuclear magnetic resonance (NMR) and inelastic neutron scattering (INS) experiments. The susceptibility has two peaks at Qi = (2π/3a, 2π/3a, 0) due to the nesting Fermi surface properties and at qi = (0.2π/a, 0, 0) due to the tendency towards ferromagnetism. Applying spin-fluctuation exchange theory as in layered cuprates we determine from χ(q,w), electronic dispersions, and Fermi surface topology that superconductivity in Sr2RuO4 consists of triplet pairing. Using X(q, w) we can exclude s- and d-wave symmetry for the superconducting order parameter. Furthermore, within our analysis and approximations we find that the order parameter will have a node between neighboring RuO2-planes and that in the RuO2-plane fx2-y2-wave and p-wave symmetry are close in energy.

AB - Using a Hubbard Hamiltonian for the three electronic bands crossing the Fermi level in Sr2RuO4, we calculate the band structure and spin susceptibility χ(q, w) in quantitative agreement with nuclear magnetic resonance (NMR) and inelastic neutron scattering (INS) experiments. The susceptibility has two peaks at Qi = (2π/3a, 2π/3a, 0) due to the nesting Fermi surface properties and at qi = (0.2π/a, 0, 0) due to the tendency towards ferromagnetism. Applying spin-fluctuation exchange theory as in layered cuprates we determine from χ(q,w), electronic dispersions, and Fermi surface topology that superconductivity in Sr2RuO4 consists of triplet pairing. Using X(q, w) we can exclude s- and d-wave symmetry for the superconducting order parameter. Furthermore, within our analysis and approximations we find that the order parameter will have a node between neighboring RuO2-planes and that in the RuO2-plane fx2-y2-wave and p-wave symmetry are close in energy.

UR - http://www.scopus.com/inward/record.url?scp=0037062366&partnerID=8YFLogxK

U2 - 10.1209/epl/i2002-00455-9

DO - 10.1209/epl/i2002-00455-9

M3 - Journal article

AN - SCOPUS:0037062366

VL - 58

SP - 871

EP - 877

JO - Lettere Al Nuovo Cimento

JF - Lettere Al Nuovo Cimento

SN - 0295-5075

IS - 6

ER -

ID: 226828036