Fermi surface reconstruction in e-doped cuprates: IR Hall measurements in underdoped $Pr_{2-x}Ce_{x}CuO_{4}$

ORAL

Abstract

The complex IR Hall angle is measured in PCCO at doping levels ranging from 10\% to 15\% at low optical excitation energy (10 meV). A precipitous decrease in Hall mass with a decrease in doping level in the underdoped regime is strong evidence of Fermi surface reconstruction and pocket formation, an observation consistent with ARPES and optical spectroscopy measurements. The data over the entire underdoped region is consistent with the predicted IR Hall response based upon ARPES data and Boltzmann theory. The temperature dependence of the Hall mass indicate a gradual roll-over from small pockets to the large unreconstructed Fermi surface expected in overdoped PCCO.

*We acknowledge the support of CNAM and NSF.

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Authors

  • Don C. Schmadel

    • Department of Physics, University of Maryland, College Park, MD 20742
    • Center for Nanophysics and Advanced Materials, University of Maryland at College Park
    • University of Maryland at College Park

  • Gregory S. Jenkins

    • Center for Nanophysics and Advanced Materials, University of Maryland at College Park
    • University of Maryland at College Park

  • Dennis Drew

    • University of Maryland
    • Department of Physics, University of Maryland, College Park, MD 20742
    • Center for Nanophysics and Advanced Materials, University of Maryland at College Park
    • University of Maryland at College Park
    • CNAM, University of Maryland

  • Rick Greene

    • Center for Nanophysics and Advanced Materials, University of Maryland at College Park
    • University of Maryland at College Park
    • University of Maryland

  • P. Fournier

    • Universite de Sherbrooke