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Violation of the Onsager relation for quantum oscillations in superconductors

Kuang-Ting Chen and Patrick A. Lee
Phys. Rev. B 79, 180510(R) – Published 26 May 2009

Abstract

We numerically study the quantum oscillations in superconducting vortex-mixed states with d-wave pairing. We show that in the parameter range of an underdoped cuprate superconductor, the commonly held assumption that the period is given by the underlying Fermi-surface area using the Onsager relation becomes invalid. Using this result, we conclude that the interpretation of the recent experimental data on YBCO as a signal of an underlying Fermi surface with four hole pockets created by a (π,π) folding cannot be ruled out.

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  • Received 1 April 2009

DOI:https://doi.org/10.1103/PhysRevB.79.180510

©2009 American Physical Society

Authors & Affiliations

Kuang-Ting Chen and Patrick A. Lee

  • Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

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Issue

Vol. 79, Iss. 18 — 1 May 2009

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