Time evolution of a pumped molecular magnet-A time-resolved inelastic neutron scattering study.

Introducing an experimental technique of time-resolved inelastic neutron scattering (TRINS), we explore the time-dependent effects of resonant pulsed microwaves on the molecular magnet CrFPiv. The octagonal rings of magnetic Cr atoms with antiferromagnetic interactions form a singlet ground state with a weakly split triplet of excitations at 0.8 meV.

Exceptional hardness in multiprincipal element alloys via hierarchical oxygen heterogeneities.

Refractory multiprincipal element alloys (RMPEAs) are potential successors to incumbent high-temperature structural alloys, although efforts to improve oxidation resistance with large additions of passivating elements have led to embrittlement. RMPEAs containing group IV and V elements have a balance of properties including moderate ductility, low density, and the necessary formability. We find that oxidation of group IV-V RMPEAs induces hierarchical heterogeneities, ranging from nanoscale interstitial complexes to tertiary phases.

Tolerance Factor Approach for the Design of Quaternary Materials as Applied to the ALnCuQ Homologous Series.

The design of novel quaternary materials can be a chemically challenging endeavor. Here, we show that a new tolerance factor, we herein call the quaternary tolerance factor (QTF), akin to the Goldschmidt ratio, can be applied to a homologous series of quaternary materials to aid in the prediction of structural stability in new phases. Single crystals of nine new members of the CuQ homologous series were synthesized ( = K, Rb, Cs, = Sm, Gd, Tb, Dy, Er, Yb, Lu, = S, Se) for = 1, 2, and 3 using a reactive KCl flux method as the sole potassium source.

Synthesis and Physical Properties of the Misfit Layered Compound (EuS)(NbSe).

A new misfit layered compound with the stoichiometry (EuS)(NbSe) (δ ≈ 0.13) has been successfully synthesized. High-resolution transmission electron microscopy and powder X-ray diffraction confirm the misfit structure with (EuS)-(EuS) spacing of 18.

Superconductivity-Electron Count Relationship in Heusler Phases-the Case of LiPdSi.

We report superconductivity in the full Heusler compound LiPdSi (space group , No. 225) at a critical temperature of = 1.3 K and a normalized heat capacity jump at , Δ/γ = 1.