Orthorhombic charge density wave on the tetragonal lattice of EuAl.

EuAl possesses the BaAl crystal structure type with tetragonal symmetry 4/. It undergoes a charge density wave (CDW) transition at  = 145 K and features four consecutive antiferromagnetic phase transitions below 16 K. Here we use single-crystal X-ray diffraction to determine the incommensurately modulated crystal structure of EuAl in its CDW state.

Superconductivity in Heusler compound ScAuAl.

We report superconducting state properties and electronic structure of a full Heusler material ScAuAl. The resistivity measurement indicates a zero-field (at nominal Earth's field) superconducting transition temperature,= 5.12 K (in contrary to the previously reported value of 4.

Negative velocity fluctuations and non-equilibrium fluctuation relation for a driven high critical current vortex state.

Under the influence of a constant drive the moving vortex state in 2H-NbS superconductor exhibits a negative differential resistance (NDR) transition from a steady flow to an immobile state. This state possesses a high depinning current threshold ([Formula: see text]) with unconventional depinning characteristics. At currents well above [Formula: see text], the moving vortex state exhibits a multimodal velocity distribution which is characteristic of vortex flow instabilities in the NDR regime.