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  Evolution of Fermi-Liquid Interactions in Sr2RuO4 under Pressure

Forsythe, D., Julian, S. R., Bergemann, C., Pugh, E., Steiner, M. J., Alireza, P. L., et al. (2002). Evolution of Fermi-Liquid Interactions in Sr2RuO4 under Pressure. Physical Review Letters, 89(16): 166402, pp. 1-4. doi:10.1103/PhysRevLett.89.166402.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-EFB8-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-EFBB-8
Genre: Journal Article

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Forsythe, D.1, Author
Julian, S. R.1, Author
Bergemann, C.1, Author
Pugh, E.1, Author
Steiner, M. J.1, Author
Alireza, P. L.1, Author
McMullan, G. J.1, Author
Nakamura, F.1, Author
Haselwimmer, R. K. W.1, Author
Walker, I. R.1, Author
Saxena, S. S.1, Author
Lonzarich, G. G.1, Author
Mackenzie, A. P.2, Author              
Mao, Z. Q.1, Author
Maeno, Y.1, Author
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1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: We have measured the temperature and field dependence of the resistivity of the unconventional superconductor Sr2RuO4 at pressures up to 3.3 GPa. Using the Shubnikov-de Haas effect, we find that the Fermi surface sheet believed to be primarily responsible for superconductivity becomes more two-dimensional with increasing pressure, a surprising result that is, however, consistent with a recent model of orbital-dependent superconductivity in this system. Many-body enhancements and the superconducting transition temperature all fall gradually with increasing pressure, contrary to previous suggestions of a ferromagnetic quantum critical point at similar to3 GPa.

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 Dates: 2002-09-27
 Publication Status: Published in print
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Title: Physical Review Letters
  Other : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 89 (16) Sequence Number: 166402 Start / End Page: 1 - 4 Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1