Divergence of the quadrupole-strain susceptibility of YbRuGe; a local moment realization of electronic nematicity
arXiv:1811.01361
Abstract
Ferroquadrupole order associated with local atomic orbitals of rare earth ions is a realization of electronic nematic order. However, there are relatively few examples of intermetallic materials which exhibit continuous ferroquadrupole phase transitions, motivating the search for additional materials that fall in to this category. Furthermore, it is not clear a priori whether experimental approaches based on transport measurements which have been successfully used to probe the nematic susceptibility in materials such as the Fe-based superconductors, will be as effective in the case of intermetallic materials, for which the important electronic degrees of freedom are local rather than itinerant and are consequently less strongly coupled to the charge-carrying quasiparticles near the Fermi energy. In the present work, we demonstrate that the intermetallic compound YbRuGe exhibits a tetragonal-to-orthorhombic phase transition consistent with ferroquadrupole order of the Yb ions, and go on to show that elastoresistivity measurements can indeed provide a clear window on the diverging nematic susceptibility in this system. This material provides a new arena in which to study the causes and consequences of electronic nematicity.
arXiv comment18 pages, 12 figures
References in corpus (23)
- Intra-unit-cell electronic nematicity of the high-Tc copper-oxide pseudogap states
- Divergent nematic susceptibility in an iron arsenide superconductor
- Effects of nematic fluctuations on the elastic properties of iron arsenide superconductors
- Enhancement of superconductivity near a nematic quantum critical point
- Thermodynamic evidence for nematic phase transition at the onset of pseudogap in YBaCuO
- Superconductivity and non-Fermi liquid behavior near a nematic quantum critical point
- Observation of incipient charge nematicity in Ba(FeCo)As
- Nematic susceptibility of hole- and electron-doped BaFe2As2 iron-based superconductors from shear modulus measurements
- Electronic nematic susceptibility of iron-based superconductors
- Measurement of the elastoresistivity coefficients of the underdoped iron-arsenide Ba(FeCo)As
- Critical Quadrupole Fluctuations and Collective Modes in Iron Pnictide Superconductors
- Nematicity in stripe ordered cuprates probed via resonant x-ray scattering
- Evidence for a nematic component to the Hidden Order parameter in URu2Si2 from differential elastoresistance measurements
- Quasiquartet CEF ground state with possible quadrupolar ordering in the tetragonal compound YbRuGe
- Nernst effect in the cuprate superconductor YBCO: Broken rotational and translational symmetries
- Theory of induced quadrupolar order in tetragonal YbRu_{2}Ge_{2}
- Superconductivity and electronic fluctuations in BaKFeAs studied by Raman scattering
- Measurement of the and components of the elastoresistivity tensor for tetragonal materials via transverse resistivity configurations
- Critical divergence of the symmetric () nonlinear elastoresistance near the nematic transition in an iron-based superconductor
- NMR study of nematic spin fluctuations in a detwinned single crystal of underdoped Ba(FeCo)As
- Local nematic susceptibility in stressed BaFeAs from NMR electric field gradient measurements
- Muon spin relaxation and neutron diffraction investigations of quadrupolar and magnetically ordered states of YbRu2Ge2
- Raman scattering as a probe of charge nematic fluctuations in iron based superconductors