Cluster spin glass in off-stoichiometric Ni.sub.2.01./sub.Mn.sub.1.58./sub.Sn.sub.0.41./sub. alloy

0575202 - FZÚ 2024 RIV GB eng J - Journal Article
Kaštil, Jiří - Kamarád, Jiří - Friák, Martin - Míšek, Martin - Dutta, Utpal - Král, Petr - Kaman, Ondřej - Arnold, Zdeněk
Cluster spin glass in off-stoichiometric Ni_2.01Mn_1.58Sn_0.41 alloy.
Intermetallics. Roč. 161, Oct (2023), č. článku 107995. ISSN 0966-9795. E-ISSN 1879-0216
R&D Projects: GA ČR(CZ) GA20-16130S; GA MŠMT(CZ) EF16_019/0000760; GA MŠMT LM2023065
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Research Infrastructure: e-INFRA CZ - 90140
Institutional support: RVO:68378271 ; RVO:68081723
Keywords : spin-glass * magnetic AC susceptibility * electrical resistivity * Heusler alloy * quantum-mechanical calculation
OECD category: Condensed matter physics (including formerly solid state physics, supercond.); Condensed matter physics (including formerly solid state physics, supercond.) (UFM-A)
Impact factor: 4.4, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.intermet.2023.107995

The measurement of AC magnetic susceptibility of the Ni2.01Mn1.58Sn0.41 alloy confirmed spin-glass state below 155 K and a presence of clusters (11nm3 in size) with strong mutual interaction. The alloy shows anomalous Hall effect that changes it's sign at around 140 K. The electrical resistance of the alloy exhibits a flat maximum at spin-glass transition temperature. The results of the quantum-mechanical calculations of magnetization of the alloy well agree with experiments.
Permanent Link: https://hdl.handle.net/11104/0345041