Jiří Pospíšil

Ordered array of ω particles in β-Ti matrix studied by small-angle X-ray scattering

Abstract Nanosized particles of ω phase in a β -Ti alloy were investigated by small-angle X-ray scattering using synchrotron radiation. We demonstrated that the particles are spontaneously weakly ordered in a three-dimensional cubic array along the 〈 1 0 0 〉 -directions in the β -Ti matrix. The small-angle scattering data fit well to a three-dimensional short-range-order model; from the fit we determined the evolution of the mean particle size and mean distance between particles during ageing. The self-ordering of the particles is explained by elastic interaction between the particles, since the relative positions of the particles coincide with local minima of the interaction energy. We performed numerical Monte Carlo simulation of the particle ordering and we obtained a good agreement with the experimental data.

Evolution of ferromagnetic and non-Fermi-liquid states with doping: The case of Ru-doped UCoGe

We have investigated the impact of Ru substitution for Co on the behavior of the ferromagnetic superconductor UCoGe by performing x-ray diffraction, magnetization, specific heat and electrical resistivity measurements on polycrystalline samples of the

Low magnetic field phase diagram of UCoGe

\mathrm{UCo}_{1-x}\mathrm{Ru}_{x}\mathrm{Ge}

Properties and Collapse of the Ferromagnetism in UCo1−xRuxAl Studied in Single Crystals

series (

Wing structure in the phase diagram of the Ising ferromagnet URhGe close to its tricritical point investigated by angle-resolved magnetization measurements

0\geq x\leq0.9

Evolution of magnetism in UCoGe and UCoAl with Ru doping

). The initial Ru substitution up to

Low temperature AC susceptibility of UCoGe crystals

x\approx0.1

Consecutive magnetic phase diagram of UCoGe-URhGe-UIrGe system

leads to a simultaneous sharp increase of the Curie temperature and spontaneous magnetization up to maximum values of

Gradual Localization of 5f States in Orthorhombic UTX Ferromagnets:Polarized Neutron Diffraction Study of Ru Substituted UCoGe

T_{\mathrm{C}}=8.6 K

Influence of Ru on the Magnetic Properties of Y2T17 (T = Co, Fe)

and