Antagonistic In-Plane Resistivity Anisotropies from Competing Fluctuations in Underdoped Cuprates

2014/12/31 by Michael Schütt, Rafael M. Fernandes · 11 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Boltzmann constant #Charge (physics) #Condensed matter physics #Cuprate #Doping #Electrical resistivity and conductivity #Magnetic and transport properties of perovskites and related materials #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Scattering #Spin (aerodynamics) #Superconductivity #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.115.027005

published in Physical Review Letters 115(2), 027005 (American Physical Society) · 5 pages + Supplementary Material

openalex publication_date 2015/07/09 · arxiv created 2015/09/03 · arxiv updated 2015/09/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

One of the prime manifestations of an anisotropic electronic state in underdoped cuprates is the in-plane resistivity anisotropy \mathrm\ensuremathΔ\ensuremathρ\ensuremath≡(\ensuremathρ_a\ensuremath-\ensuremathρ_b)/\ensuremathρ_b. Here we use a Boltzmann-equation approach to compute the contribution to \mathrm\ensuremathΔ\ensuremathρ arising from scattering by anisotropic charge and spin fluctuations, which have been recently observed experimentally. While the anisotropy in the charge fluctuations is manifested in the correlation length, the anisotropy in the spin fluctuations emerges only in the structure factor. As a result, we find that spin fluctuations favor \mathrm\ensuremathΔ\ensuremathρ>0, whereas charge fluctuations promote \mathrm\ensuremathΔ\ensuremathρ<0, which are both consistent with the doping dependence of \mathrm\ensuremathΔ\ensuremathρ observed in YBa₂Cu₃O₇. We also discuss the role played by CuO chains in these materials, and propose transport experiments in strained HgBa₂CuO₄ and Nd₂CuO₄ to probe directly the different resistivity anisotropy regimes.

Citations

• Electronic Liquid Crystal State in the High-Temperature Superconductor YBa 2 Cu 3 O 6.45
• Theory of electron nematic order in LaFeAsO
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Cited by

• Origin of the Resistivity Anisotropy in the Nematic Phase of FeSe