Field-orientation-dependent anisotropic magnetic couplings in multiple magnetic ordering system NdMn <sub>2</sub> Ge <sub>2</sub>
Tetragonal NdMn[Formula: see text]Ge[Formula: see text], a material exhibiting multiple non-collinear magnetic ordering phases, holds significant application potential. Herein, we systematically investigate the magnetic entropy change of NdMn[Formula: see text]Ge[Formula: see text]. Critical exponents are determined as [Formula: see text], [Formula: see text], [Formula: see text] for [Formula: see text], and [Formula: see text], [Formula: see text], [Formula: see text] for [Formula: see text]. Critical exponents for [Formula: see text] closely align with the three-dimensional Heisenberg model, indicating isotropic short-range magnetic interactions. In contrast, those for [Formula: see text] do not conform to any single theoretical universality class. The distinct anisotropic critical exponents underscore field-orientation-dependent magnetic interactions, crucial for understanding non-collinear spin textures in this system.
Authors
- Yongliang Qin
- Chaohong Gao (ORCID: https://orcid.org/0000-0003-0679-2056)
- Zhenwu Zeng (ORCID: https://orcid.org/0009-0003-2307-3181)
- Kesen Zhao (ORCID: https://orcid.org/0000-0003-3084-0441)
- Wen Ren (ORCID: https://orcid.org/0000-0002-3605-7274)
- Azizur Rahman
- Jun Zhao
- Liwei Chen
- Hao Gao
- Zhe Qu
- Lei Zhang
Institutions
- Chinese Academy of Sciences (CN)
- Sanming University (CN)
- Beihang University (CN)
Publication Details
- Journal
- Materials Research Letters
- Published
- 2026-01-12
- DOI
- https://doi.org/10.1080/21663831.2026.2614376
- Primary Topic
- Magnetic and transport properties of perovskites and related materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00