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  Normal state of the unconventional superconductor Sr2RuO4 in high magnetic fields

Bergemann, C., Brooks, J. S., Balicas, L., Mackenzie, A. P., Julian, S. R., Mao, Z. Q., et al. (2001). Normal state of the unconventional superconductor Sr2RuO4 in high magnetic fields. Physica B-Condensed Matter, 294-295, 371-374. doi:10.1016/S0921-4526(00)00680-3.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-F044-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-F04E-8
Genre: Journal Article

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 Creators:
Bergemann, C.1, Author
Brooks, J. S.1, Author
Balicas, L.1, Author
Mackenzie, A. P.2, Author              
Julian, S. R.1, Author
Mao, Z. Q.1, Author
Maeno, Y.1, Author
Affiliations:
1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: The layered perovskite oxide Sr2RuO4 appears to be an ideal material to investigate unconventional superconductivity in real depth. We have performed a de Haas–van Alphen (dHvA) study in this material in fields up to 33 T and temperatures down to 30 mK. The results indicate that the Fermi liquid description of the normal state remains valid up to the highest fields, with unchanged mass renormalization and linear spin susceptibility. In a quantum critical point scenario of superconductivity, this would indicate that the corresponding order parameter only couples weakly to a magnetic field. We were also able, for the first time, to directly observe a beat in the dHvA oscillations corresponding to the γ-surface which is the largest and thermodynamically most important Fermi surface sheet. This complements and further extends the Fermi surface description presented elsewhere.

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 Dates: 2001-01-01
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1016/S0921-4526(00)00680-3
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Title: Physica B-Condensed Matter
  Other : Physica B
Source Genre: Journal
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Publ. Info: Amsterdam : North-Holland
Pages: - Volume / Issue: 294-295 Sequence Number: - Start / End Page: 371 - 374 Identifier: ISSN: 0921-4526
CoNE: /journals/resource/954928575733