Hydrogenation Effects in UTGe Compounds: Structure and Magnetic Properties

Abstract

UTGe compounds absorb hydrogen up to 2 H atoms/f.u., which has a dramatic impact on the 5f magnetism. The TC value of UCoGe increases to 50 K.

Magnetic susceptibility of spin fluctuator UFeGe markedly increases. For ferromagnetic URhGe only aplha-hydride could be obtained with moderate increase of TC and spontaneous moment.

The aplha-hydride of UCoGe is surprisingly paramagnetic despite of a small volume expansion (0.25 %)

Keywords

• Hydrogenation
• Effects
• Compounds
• Structure
• Magnetic
• Properties