Shubnikov-de Haas oscillations in YBa_2Cu_4O_8

Abstract

We report the observation of Shubnikov-de Haas oscillations in the underdoped cuprate superconductor YBa${}_2$Cu${}_4$O${}_8$ (Y124). For field aligned along the c-axis, the frequency of the oscillations is $660\pm 30$ T, which corresponds to $\sim 2.4$ % of the total area of the first Brillouin zone. The effective mass of the quasiparticles on this orbit is measured to be $2.7\pm 0.3$ times the free electron mass. Both the frequency and mass are comparable to those recently observed for ortho-II YBa${}_2$Cu${}_3$O${}_{6.5}$ (Y123-II). We show that although small Fermi surface pockets may be expected from band structure calculations in Y123-II, no such pockets are predicted for Y124. Our results therefore imply that these small pockets are a generic feature of the copper oxide plane in underdoped cuprates.

v2: Version of paper accepted for publication in Physical Review Letters. Only minor changes to the text and references

References in corpus (3)

• Quantum Oscillations in the Underdoped Cuprate YBa2Cu4O8
• The ground state of heavily-overdoped non-superconducting La${}_{2-x}$Sr${}_x$CuO${}_4$
• Fragile three-dimensionality in the quasi-one-dimensional cuprate PrBa_2Cu_4O_8

Cited by in corpus (7)

• Quantum Oscillations in the Underdoped Cuprate YBa2Cu4O8
• Fermi pockets and quantum oscillations of the Hall coefficient in high temperature superconductors
• Time-reversal symmetry breaking by a $(d+id)$ density-wave state in underdoped cuprate superconductors
• Competing order, Fermi surface reconstruction, and quantum oscillations in underdoped high temperature superconductors
• Quantum Oscillations in the mixed state of d-wave superconductor
• Fermi momentum resolved charge order for spin disordered stripes
• The Shubnikov-de Haas effect in multiband quasi-two dimensional metals