Hall Effect Anisotropy in the Paramagnetic Phase of Ho_0.8Lu_0.2B₁₂ Induced by Dynamic Charge Stripes.

ABSTRACT: A detailed study of charge transport in the paramagnetic phase of the cage-cluster dodecaboride Ho0.8Lu0.2B12 with an instability both of the fcc lattice (cooperative Jahn−Teller effect) and the electronic structure (dynamic charge stripes) was carried out at temperatures 1.9−300 K in magnetic fields up to 80 kOe. Four mono-domain single crystals of Ho0.8Lu0.2B12 samples with different crystal axis orientation were investigated in order to establish the singularities of Hall effect, which develop due to (i) the electronic phase separation (stripes) and (ii) formation of the disordered cage-glass state below T*~60 K. It was demonstrated that a considerable intrinsic anisotropic positive component ρanxy appears at low temperatures in addition to the ordinary negative Hall resistivity contrib

SUBMITTER: Khoroshilov AL 

PROVIDER: S-EPMC9863903 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature