Properties of the hole and electron doped perovskites LnCoO3 (2008)
Jirak, Z., Hejtmanek, J., Knizek, K., Veverka, M.
Two extreme members of the cobaltite series, LaCoO3 and DyCoO3, were investigated by the electrical resistivity and thermopower measurements up to 800-1000 K. Special attention was given to effects...
Structural anomalies, spin transitions and charge disproportionation in LnCoO3 (2007)
Knizek, K., Jirak, Z., Hejtmanek, J., Henry, P., Andre, G.
The diamagnetic-paramagnetic and insulator-metal transitions in LnCoO3 perovskites (Ln = La, Y, rare earths) are reinterpreted and modeled as a two-level excitation process. In distinction to...
Valence and spin states in perovskites LaCo0.95M0.05O3 (M = Mg, Ga, Ti) (2007)
Hejtmanek, J., Jirak, Z., Knizek, K., Marysko, M., Veverka, M., Autret, C.
The samples LaCoO3 with dilute substitutions on cobalt sites have been studied using the resistivity, thermopower and magnetic susceptibility measurements over the temperature range up to ~900 K. The...
Temperature- and pressure-driven spin-state transitions in LaCoO3 (2007)
Kozlenko, DP, Golosova, NO, Jirak, Z, Dubrovinsky, LS, Savenko, BN, Tucker, MG, ...
M. Sikora, DESY Forschung Mit Photonen, Cz. Kapusta, K. Knizek, Z. Jirak, C. Autret, ...
Journal article
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., ...
Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights...
Structural anomalies associated with the electronic and spin transitions in LnCoO3 (2005)
Knizek, K., Jirak, Z., Hejtmanek, J., Veverka, M., Marysko, M., Maris, G., ...
A powder X-ray diffraction study, combined with the magnetic susceptibility and electric transport measurements, was performed on a series of LnCoO3 perovskites (Ln = Y, Dy, Gd, Sm, Nd, Pr and La)...
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., ...
Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights...
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., ...
Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights...
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., ...
Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights...
The magnetoresistive behavior of Cr-doped manganites Pr0.44Sr0.56MnO3 (2002)
Jirak, Z., Hejtmanek, J., Knizek, K., Marysko, M., Martin, C., Maignan, A., ...
A complex structural, magnetic and electric transport investigation shows that the Cr doping on Mn sites in the A-type antiferromagnet Pr0.44Sr0.56MnO3 provokes a non-uniform magnetic state with...
Ordering phenomena and transport properties of Bi1/2Sr1/2MnO3 single crystals (2002)
Hejtmanek, J., Knizek, K., Jirak, Z., Hervieu, M., Martin, C., Nevriva, M., ...
Measurements of the electrical and thermal conductivities, thermopower and paramagnetic susceptibility have been performed on single crystal samples of Bi1/2Sr1/2MnO3 and complemented with the X-ray...