Manipulating spin alignments of (Y,Lu).sub.1.7./sub.Fe.sub.17./sub. intermetallic compounds via unusual thermal pressure

0539035 - FZÚ 2021 RIV US eng J - Journal Article
Cao, Y. - Lin, K. - Liu, Z. - Hu, J. - Wang, C.W. - Liu, X.Z. - Tereshina-Chitrova, Evgenia - Kato, K. - Li, Q. - Deng, J. - Chen, J. - Zhang, H. - Xing, X.R.
Manipulating spin alignments of (Y,Lu)_1.7Fe₁₇ intermetallic compounds via unusual thermal pressure.
Inorganic Chemistry. Roč. 59, č. 8 (2020), s. 5247-5251. ISSN 0020-1669. E-ISSN 1520-510X
R&D Projects: GA ČR(CZ) GA19-00925S
Institutional support: RVO:68378271
Keywords : intermetallic compounds * magnetic materials * phase transitions
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 5.165, year: 2020
Method of publishing: Limited access
https://doi.org/10.1021/acs.inorgchem.9b03570

The search for simple and effective ways to apply pressure on the lattice is challenging but intriguing. Here we report a new strategy to manipulate the spin alignments of (Y,Lu)1.7Fe17 intermetallic compounds through unusual thermal pressure. The spin alignments of Fe initially lie parallel inside the basal plane and then turn spirally between adjacent layers with a zone axis along the c direction under higher Lu concentration. The synchrotron and neutron powder diffraction investigations clearly reveal that the direction of spin alignments is highly correlated to large lattice contraction induced by negative thermal expansion (NTE), an unusual thermal pressure, along the c direction. The critical lattice parameter c to form spiral spin alignments is determined unambiguously. This work presents a feasible way to adjust spin alignments through NTE.
Permanent Link: http://hdl.handle.net/11104/0316792