Magnetic frustration and spontaneous rotational symmetry breaking in PdCrO2

Sun, Dan; Sokolov, Dmitry A.; Bartlett, Jack M.; Sannigrahi, Jhuma; Khim, Seunghyun; Kushwaha, Pallavi; Khalyavin, Dmitry D.; Manuel, Pascal; Gibbs, Alexandra S.; Takagi, Hidenori; Mackenzie, Andrew P.; Hicks, Clifford W.

doi:10.1103/PhysRevB.100.094414

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Magnetic frustration and spontaneous rotational symmetry breaking in PdCrO₂

MPG-Autoren

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Sun, Dan
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Sokolov, Dmitry A.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Bartlett, Jack M.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Sannigrahi, Jhuma
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons200145

Khim, Seunghyun
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons132116

Kushwaha, Pallavi
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126742

Mackenzie, Andrew P.
Andrew Mackenzie, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126653

Hicks, Clifford W.
Clifford Hicks, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Zitation

Sun, D., Sokolov, D. A., Bartlett, J. M., Sannigrahi, J., Khim, S., Kushwaha, P., et al. (2019). Magnetic frustration and spontaneous rotational symmetry breaking in PdCrO₂. Physical Review B, 100(9): 094414, pp. 1-10. doi:10.1103/PhysRevB.100.094414.

Zitierlink: https://hdl.handle.net/21.11116/0000-0008-8688-7

Zusammenfassung

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 degrees 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 breaking of the threefold 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.