J. Hejtm'anek

Two samples of the [Ca $_{2}$ CoO $_{3 - t}$ ] $_{0.62}$ (CoO $_{2}$ ) misfit cobaltate, often denoted as the Ca $_{3}$ Co $_{3.93}$ O $_{9}$ phase, were prepared from the same ceramic material by th…

cond-mat.mtrl-sci2012★ 24 cited

Stabilization of the high-spin state of Co $^{3 +}$ in LaCo $_{1 - x}$ Rh $_{x}$ O $_{3}$

K. Knížek, J. Hejtmánek, M. Maryško +2

The rhodium doping in the LaCo $_{1 - x}$ Rh $_{x}$ O $_{3}$ perovskite series ( $x = 0.02 - 0.5$ ) has been studied by X-ray diffraction, electric transport and magnetization measurements, compl…

cond-mat.str-el2010★ 66 cited

Metal-insulator transition and the Pr $^{3 +}$ /Pr $^{4 +}$ valence shift in (Pr $_{1 - y}$ Y $_{y}$ ) $_{0.7}$ Ca $_{0.3}$ CoO $_{3}$

J. Hejtmánek, E. Šantavá, K. Knížek +4

The magnetic, electric and thermal properties of the ( $L n_{1 - y}$ Y $_{y}$ ) $_{0.7}$ Ca $_{0.3}$ CoO $_{3}$ perovskites ( $L n$ ~=~Pr, Nd) were investigated down to very low temperatures. The m…

Spin-entropy contribution to thermopower in the [Ca2​CoO3−t​]0.62​(CoO2​) misfits

Stabilization of the high-spin state of Co3+ in LaCo1−x​Rhx​O3​

Metal-insulator transition and the Pr3+/Pr4+ valence shift in (Pr1−y​Yy​)0.7​Ca0.3​CoO3​

Spin-entropy contribution to thermopower in the [Ca $_{2}$ CoO $_{3 - t}$ ] $_{0.62}$ (CoO $_{2}$ ) misfits

Stabilization of the high-spin state of Co $^{3 +}$ in LaCo $_{1 - x}$ Rh $_{x}$ O $_{3}$

Metal-insulator transition and the Pr $^{3 +}$ /Pr $^{4 +}$ valence shift in (Pr $_{1 - y}$ Y $_{y}$ ) $_{0.7}$ Ca $_{0.3}$ CoO $_{3}$