Alloying-driven transition between ferromagnetism and antiferromagnetism in UTGe compounds: UCo.sub.1-x./sub.Ir.sub.x./sub.Ge

0553450 - FZÚ 2023 RIV US eng J - Článek v odborném periodiku
Hovančík, D. - Koriki, A. - Bendová, A. - Doležal, P. - Proschek, P. - Míšek, Martin - Reiffers, M. - Prokleška, J. - Pospíšil, J. - Sechovský, V.
Alloying-driven transition between ferromagnetism and antiferromagnetism in UTGe compounds: UCo_1-xIr_xGe.
Physical Review B. Roč. 105, č. 1 (2022), č. článku 014436. ISSN 2469-9950. E-ISSN 2469-9969
Grant CEP: GA MŠMT(CZ) LM2018096
Institucionální podpora: RVO:68378271
Klíčová slova: magnetic coupling * magnetic interactions * magnetic order * magnetic phase transitions * magnetism
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.7, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevB.105.014436

The evolution of magnetic properties of isostructural and isoelectronic solid solutions of the superconducting itinerant 5f-electron ferromagnet (FM) UCoGe with antiferromagnet (AFM) UIrGe was studied by magnetization, AC susceptibility, specific heat, and electrical resistivity measurements of a series of UCo11-xIrxGe compounds in polycrystalline and single-crystalline form at various temperatures and magnetic fields. Both the weak FM and superconductivity in UCoGe were found to have vanished already for very low Ir substitution for Co (x=0.02). The AFM of UIrGe is gradually suppressed. This is documented by a rapid decrease in both Néel temperature and the critical field of the metamagnetic transition with decreasing Ir concentration, which both tend to vanish just above x=0.8
Trvalý link: https://hdl.handle.net/11104/0339155