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Magnetic frustration and spontaneous rotational symmetry breaking in PdCrO_2

机译：Pdcro_2中断裂磁挫折和自发旋转对称性

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摘要

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.
机译：在三角形层状磁铁Pdcro2中，腔内磁相互作用强;然而，晶格结构挫败了层间相互作用。尽管这一点，远程，120度反铁磁顺序在TN = 38 K处凝结。我们通过在面内的单轴应力和面内磁场下通过中子散射测量来显示这是通过三倍旋转的自发破碎发生的非磁性格子的对称性，减轻了层间挫折。我们还通过电阻率测量表明，单轴应力可以抑制反铁磁相中的热磁性病症。

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  • 来源
    《Physical review》 |2019年第9期|094414.1-094414.10|共10页
  • 作者

    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.;

  • 作者单位

    Max Planck Inst Chem Phys Solids Nothnitzer Str 40 D-01187 Dresden Germany|Los Alamos Natl Lab Los Alamos NM 87545 USA;

    Max Planck Inst Chem Phys Solids Nothnitzer Str 40 D-01187 Dresden Germany;

    Max Planck Inst Chem Phys Solids Nothnitzer Str 40 D-01187 Dresden Germany|Univ St Andrews Sch Phys & Astron SUPA St Andrews KY16 9SS Fife Scotland;

    Max Planck Inst Chem Phys Solids Nothnitzer Str 40 D-01187 Dresden Germany;

    Max Planck Inst Chem Phys Solids Nothnitzer Str 40 D-01187 Dresden Germany;

    Max Planck Inst Chem Phys Solids Nothnitzer Str 40 D-01187 Dresden Germany|CSIR Natl Phys Lab Dr KS Krishnan Marg New Delhi 110012 India;

    STFC Rutherford Appleton Lab ISIS Facil Didcot OX11 0QX Oxon England;

    STFC Rutherford Appleton Lab ISIS Facil Didcot OX11 0QX Oxon England;

    STFC Rutherford Appleton Lab ISIS Facil Didcot OX11 0QX Oxon England;

    Max Planck Inst Solid State Res Heisenbergstr 1 D-70569 Stuttgart Germany|Univ Stuttgart Inst Funct Matter & Quantum Technol Pfaffenwaldring 57 D-70569 Stuttgart Germany|Univ Tokyo Dept Phys Bunkyo Ku 7-3-1 Hongo Tokyo 1130022 Japan;

    Max Planck Inst Chem Phys Solids Nothnitzer Str 40 D-01187 Dresden Germany|Univ St Andrews Sch Phys & Astron SUPA St Andrews KY16 9SS Fife Scotland;

    Max Planck Inst Chem Phys Solids Nothnitzer Str 40 D-01187 Dresden Germany;

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