Uranium ruthenium silicide

Uranium ruthenium silicide (URu₂Si₂) is a heavy fermion alloy composed of uranium, ruthenium, and silicon. URu₂Si₂ has the same '122' tetragonal crystal structure as many other compounds of present condensed matter research. URu₂Si₂ is a superconductor with a hastatic order (HO) phase below a temperature of 17.5 K.^[1][2] Below this temperature, it is magnetic, and below about 1.5 K it superconducts.^[3] However, the nature of the ordered phase below 17.5K is still under debate despite a wide variety of scenarios that have been proposed to explain this phase.

Uranium ruthenium silicide

Identifiers
CAS Number	87588-60-1 Y
3D model (JSmol)	Interactive image
InChI InChI=1S/2Ru.2Si.U Key: NSFTZNXXKZDCRK-UHFFFAOYSA-N
SMILES [Ru].[Ru].[Si].[Si].[U]
Properties
Chemical formula	Ru2Si2U
Molar mass	496.34 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references