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  The Unconventional Superconductivity of Sr2RuO4

Forgan, E. M., Mackenzie, A. P., & Maeno, Y. (1999). The Unconventional Superconductivity of Sr2RuO4. Journal of Low Temperature Physics, 117(5-6), 1567-1574. doi:10.1023/A:1022547212493.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-EF1D-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-EF28-1
Genre: Journal Article

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Forgan, E. M.1, Author
Mackenzie, A. P.2, Author              
Maeno, Y.1, Author
Affiliations:
1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: We review the evidence for unconventional superconductivity in Sr 2 RuO 4 ; the pairing in this material is certainly non-s-wave, and most of the current observations can be accounted for by a particular p-wave state, which is doubly degenerate and breaks time-reversal symmetry. Our observations of the flux lattice by small-angle neutron scattering contribute to this picture. The square flux lattice and the intensity of the diffracted signal indicate that superconductivity resides primarily on the γ sheet of the Fermi surface, which is derived from the Ru - d xy orbitals. This is in agreement with the “orbital-dependent” p-wave scenario. Furthermore, the shape of the flux lines derived from these measurements is strongly indicative of a two-component order parameter.

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 Dates: 1999-12-01
 Publication Status: Published in print
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 Identifiers: DOI: 10.1023/A:1022547212493
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Title: Journal of Low Temperature Physics
Source Genre: Journal
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Publ. Info: New York : Plenum Press.
Pages: - Volume / Issue: 117 (5-6) Sequence Number: - Start / End Page: 1567 - 1574 Identifier: ISSN: 0022-2291
CoNE: /journals/resource/954925414929