Quantum oscillations in the underdoped cuprate YBa2Cu4O8

Edward Alexander Yelland; J. Singleton; C. H. Mielke; N. Harrison; F. F. Balakirev; B. Dabrowski; J. R. Cooper

doi:10.1103/PhysRevLett.100.047003

Quantum oscillations in the underdoped cuprate YBa₂Cu₄O₈

Edward Alexander Yelland, J. Singleton, C. H. Mielke, N. Harrison, F. F. Balakirev, B. Dabrowski, J. R. Cooper

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Abstract

We report the observation of quantum oscillations in the underdoped cuprate superconductor YBa2Cu4O8 using a tunnel-diode oscillator technique in pulsed magnetic fields up to 85 T. There is a clear signal, periodic in inverse field, with frequency 660 +/- 15 T and possible evidence for the presence of two components of slightly different frequency. The quasiparticle mass is m*=3.0 +/- 0.3m(e). In conjunction with the results of Doiron-Leyraud et al. for YBa2Cu3O6.5, the present measurements suggest that Fermi surface pockets are a general feature of underdoped copper oxide planes and provide information about the doping dependence of the Fermi surface.

Original language	English
Article number	047003
Number of pages	4
Journal	Physical Review Letters
Volume	100
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.100.047003
Publication status	Published - 1 Feb 2008

Keywords

FERMI-SURFACE
SUPERCONDUCTOR
PSEUDOGAP
PHASE
YBA2CU3O7-DELTA
LIQUID

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10.1103/PhysRevLett.100.047003

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abstract = "We report the observation of quantum oscillations in the underdoped cuprate superconductor YBa2Cu4O8 using a tunnel-diode oscillator technique in pulsed magnetic fields up to 85 T. There is a clear signal, periodic in inverse field, with frequency 660 +/- 15 T and possible evidence for the presence of two components of slightly different frequency. The quasiparticle mass is m*=3.0 +/- 0.3m(e). In conjunction with the results of Doiron-Leyraud et al. for YBa2Cu3O6.5, the present measurements suggest that Fermi surface pockets are a general feature of underdoped copper oxide planes and provide information about the doping dependence of the Fermi surface.",

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AU - Yelland, Edward Alexander

AU - Singleton, J.

AU - Mielke, C. H.

AU - Harrison, N.

AU - Balakirev, F. F.

AU - Dabrowski, B.

AU - Cooper, J. R.

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AB - We report the observation of quantum oscillations in the underdoped cuprate superconductor YBa2Cu4O8 using a tunnel-diode oscillator technique in pulsed magnetic fields up to 85 T. There is a clear signal, periodic in inverse field, with frequency 660 +/- 15 T and possible evidence for the presence of two components of slightly different frequency. The quasiparticle mass is m*=3.0 +/- 0.3m(e). In conjunction with the results of Doiron-Leyraud et al. for YBa2Cu3O6.5, the present measurements suggest that Fermi surface pockets are a general feature of underdoped copper oxide planes and provide information about the doping dependence of the Fermi surface.

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JF - Physical Review Letters

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Quantum oscillations in the underdoped cuprate YBa₂Cu₄O₈

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Keywords

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