Khoroshilov, A.; Krasnorussky, V.; Bogach, A.; Glushkova, V.; Demishev, S.; Levchenko, A.; Shitsevalova, N.; Filipov, V.; Gabani, S.; Flachbart, K.; Anisimov, M.; Siemensmeyer, K.; Sluchanko, N.: Anisotropy of Magnetoresistance in HoB12. Acta Physica Polonica A 131 (2017), p. 976-978
Open Accesn Version

We present results of precision measurements of magnetoresistance of isotopically pure Ho^(11)B_12 at low temperatures 2 - 10 K in magnetic field to 80 kOe of different orientation to the crystal axes. The data obtained revealed strong anisotropy of magnetoresistance and allowed us to reconstruct magnetic H-T phase diagrams for main crystallographic directions H || [001], [110], and [111]. Analysis of magnetoresistance derivatives allowed to conclude in favor of two main magnetoresistance contributions. Among of them the negative quadratic component is attributed to charge carriers scattering on a magnetic clusters of Ho3+ ions (4f component) and positive linear one may be explained in terms of scattering on a spin density waves (5d component).