Contribution of magnetovolume effect to Young's modulus in transition metal-metalloid amorphous alloys.

Tunable magnetocaloric effect in transition metal alloys

The unpredictability of geopolitical tensions and resulting supply chain and pricing instabilities make it imperative to explore rare earth free magnetic materials. As such, we have investigated fully transition metal based "high entropy alloys" in the context of the magnetocaloric effect. We find the NiFeCoCrPdx family exhibits a second order magnetic phase transition whose critical temperatur...

The glass-forming ability of model metal-metalloid alloys.

Bulk metallic glasses (BMGs) are amorphous alloys with desirable mechanical properties and processing capabilities. To date, the design of new BMGs has largely employed empirical rules and trial-and-error experimental approaches. Ab initio computational methods are currently prohibitively slow to be practically used in searching the vast space of possible atomic combinations for bulk glass form...

Amorphous to amorphous insulator-metal transition in GeSe3:Ag glasses

We study an insulator-metal transition in a ternary chalcogenide glass (GeSe3)1−xAgx for x = 0.15 and 0.25. The conducting phase of the glass is obtained by using gap sculpting [Prasai et al., Sci. Rep. 5, 15522 (2015)] and it is observed that the metallic and insulating phases have nearly identical density functional energies but have a conductivity contrast of ∼108. As such, we demonstrate an...

Short-range Oder in Transition Metal-metalloid Glasses

Formation of magnetic characteristics and hyperfine fields in metal-metalloid alloys

Physical-Technical Institute, Ural Branch of Russian Academy of Sciences, Izhevsk, Russia This work deals with the analysis of peculiarities of formation of the hyperfine fields (HFF) at the Fe nuclei in disordered alloys metalmetalloid using the ”first-principles” calculations. Some phenomenological models and justification of their usage for the interpretation of the experimental HFF distribu...