The lower symmetry electron-density distribution and the charge transport anisotropy in cubic dodecaboride LuB12

Abstract

High-quality single crystals of LuB12 are grown using the induction zone melting method. The X-ray data are collected at temperatures 293, 135, 95, 50 K. The crystal structure of LuB12 can be refined with record low R-factor in the cubic Fm-3m symmetry group despite reiterated observations of the cubic symmetry distortions both in the unit-cell values and in the physical properties. A peculiar computing strategy is developed to resolve this contradiction. True symmetry of the electron-density distribution in LuB12 is proved to be much lower than cubic as a result, which correlates very accurately with anisotropy of transport properties of LuB12.

arXiv comment17 pages, 6 figures, 1 Table

References in corpus (1)

• Rattling mode and symmetry lowering resulting from instability of B${}_{12}$-molecule in LuB${}_{12}$

Cited by in corpus (17)

• Observation of dynamic charge stripes in Tm0.19Yb0.81B12 at the metal-insulator transition
• Maltese Cross anisotropy in Ho0.8Lu0.2B12 antiferromagnetic metal with dynamic charge stripes
• Collective infrared excitation in rare-earth Gd${}_x$La${}_{1-x}$B${}_6$ hexaborides
• Suppression of indirect exchange and symmetry breaking in antiferromagnetic metal with dynamic charge stripes
• Quantum diffusion regime of the charge transport in GdB6 caused by electron and lattice instability
• Checkerboard-type patterns of charge stripes in two-gap superconductor ZrB12
• Hall effect and symmetry breaking in non-magnetic metal with dynamic charge stripes
• Giant Anisotropic Magnetoresistance due to Purely Orbital Rearrangement in the Quadrupolar Heavy Fermion Superconductor PrV${}_2$Al${}_{20}$
• Crystal structures of dodecaborides: complexity in simplicity
• Neutron-scattering studies of spin dynamics in pure and doped CeB6
• Magnetism, quantum criticality, and metal-insulator transitions in $R{\mathrm{B}}_{12}$
• Evidence of electronic phase separation in the strongly correlated semiconductor YbB12
• Evidence of symmetry lowering in antiferromagnetic metal TmB12 with dynamic charge stripes
• Inhomogeneous superconductivity in LuxZr1-xB12 dodecaborides with dynamic charge stripes
• Crystal field potential and short-range order effects in inelastic neutron scattering, magnetization and heat capacity of the cage-glass compound HoB12
• Local origin of the strong field-space anisotropy in the magnetic phase diagrams of Ce${}_{1-x}$La${}_x$B${}_6$ measured in a rotating magnetic field
• Anisotropic magnetoresistance and memory effect in bulk systems with extended defects