Competition and coexistence of antiferromagnetism and superconductivity in RBa₂Cu₃O_6+x (R = Lu, Y) single crystals

2009/03/09 by A. N. Lavrov, L. P. Kozeeva, M. R. Trunin +1 · 1 citation
Physics and Astronomy · #cond-mat.supr-con #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.79.214523

published as Phys. Rev. B 79, 214523 (2009) · 7 pages, 6 figures

arxiv created 2009/03/09 · arxiv updated 2015/05/12

Abstract

We use c-axis resistivity and magnetoresistance measurements to study the interplay between antiferromagnetic (AF) and superconducting (SC) ordering in underdoped RBa₂Cu₃O_6+x (R = Lu, Y) single crystals. Both orders are found to emerge from an anisotropic 3D metallic state, upon which antiferromagnetism opposes superconductivity by driving the doped holes towards localization. Despite the competition, the superconductivity sets in before the AF order is completely destroyed and coexists with latter in a certain range of hole doping. We find also that strong magnetic fields affect the AF-SC interplay by both suppressing the superconductivity and stabilizing the Neel order.

Cited by

• Evolution of quantum criticality in underdoped cuprates

Related

• Magnetic-field induced superconductor-antiferromagnet transition in lightly doped RBa₂Cu₃O_6+x (R = Lu, Y) crystals
• Manifestations of the Charged Stripes in the Magnetoresistance of Heavily Underdoped YBa₂Cu₃O_6+x
• Chain metallicity and competition between paramagnetism and antiferromagnetism in underdopedYBa2Cu3O6+x: A first principles description
• Magnetic-field-enhanced spin freezing on the verge of charge ordering in YBa2Cu3O6.45
• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy