Evolution of Fermi-liquid interactions in Sr2RuO4 under pressure

D  Forsythe; S R  Julian; C  Bergemann; E  Pugh; M J  Steiner; P L  Alireza; G J  McMullan; F  Nakamura; R K W  Haselwimmer; I R  Walker; S S  Saxena; G G  Lonzarich; A P  Mackenzie; Z Q  Mao; Y  Maeno

doi:10.1103/PhysRevLett.89.166402

Evolution of Fermi-liquid interactions in Sr2RuO4 under pressure

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

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

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.

Original language	English
Number of pages	4
Journal	Physical Review Letters
Volume	89
DOIs	https://doi.org/10.1103/PhysRevLett.89.166402
Publication status	Published - 14 Oct 2002

Keywords

SUPERCONDUCTIVITY
FERROMAGNETISM
DEPENDENCE

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10.1103/PhysRevLett.89.166402

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Forsythe, D., Julian, S. R., Bergemann, C., Pugh, E., Steiner, M. J., Alireza, P. L., McMullan, G. J., Nakamura, F., Haselwimmer, R. K. W., Walker, I. R., Saxena, S. S., Lonzarich, G. G., Mackenzie, A. P., Mao, Z. Q., & Maeno, Y. (2002). Evolution of Fermi-liquid interactions in Sr2RuO4 under pressure. Physical Review Letters, 89. https://doi.org/10.1103/PhysRevLett.89.166402

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title = "Evolution of Fermi-liquid interactions in Sr2RuO4 under pressure",

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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doi = "10.1103/PhysRevLett.89.166402",

language = "English",

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journal = "Physical Review Letters",

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T1 - Evolution of Fermi-liquid interactions in Sr2RuO4 under pressure

AU - Forsythe, D

AU - Julian, S R

AU - Bergemann, C

AU - Pugh, E

AU - Steiner, M J

AU - Alireza, P L

AU - McMullan, G J

AU - Nakamura, F

AU - Haselwimmer, R K W

AU - Walker, I R

AU - Saxena, S S

AU - Lonzarich, G G

AU - Mackenzie, A P

AU - Mao, Z Q

AU - Maeno, Y

PY - 2002/10/14

Y1 - 2002/10/14

N2 - 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.

AB - 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.

KW - SUPERCONDUCTIVITY

KW - FERROMAGNETISM

KW - DEPENDENCE

U2 - 10.1103/PhysRevLett.89.166402

DO - 10.1103/PhysRevLett.89.166402

M3 - Article

SN - 0031-9007

VL - 89

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Evolution of Fermi-liquid interactions in Sr2RuO4 under pressure

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Keywords

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