Magnetic frustration and spontaneous rotational symmetry breaking in PdCrO2

Abstract

In the triangular layered magnet PdCrO2 the intralayer magnetic interactions are strong, however the lattice structure frustrates interlayer interactions. In spite of this, long-range, 120${}^{\circ }$ antiferromagnetic order condenses at $T_N=38$~K. We show here through neutron scattering measurements under in-plane uniaxial stress and in-plane magnetic field that this occurs through a spontaneous lifting of the three-fold rotational symmetry of the nonmagnetic lattice, which relieves the interlayer frustration. We also show through resistivity measurements that uniaxial stress can suppress thermal magnetic disorder within the antiferromagnetic phase.

arXiv comment9 pages, 9 figures

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Cited by in corpus (4)

• From basic properties to the Mott design of correlated delafossites
• Single domain stripe order in a high-temperature superconductor
• Heisenberg spins on an anisotropic triangular lattice: PdCrO2 under uniaxial stress
• Intermediate-scale theory for electrons coupled to frustrated local-moments