Critical behavior and strongly anisotropic interactions in PrMn2Ge2
Critical behavior and strongly anisotropic interactions in PrMn2Ge2
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PrMn2Ge2 中的临界行为和强各向异性相互作用
DOI:
10.1063/5.0082565
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发表时间:
2022-02
影响因子:
4
通讯作者:
Yimin Xiong
中科院分区:
文献类型:
--
作者:
Meng Song;Jun Zhao;Caixing Liu;Miao He;Yihao Wang;Yuyan Han;Langsheng Ling;Liang Cao;Lei Zhang;Zhe Qu;Yimin Xiong
Understanding the mechanisms for forming skyrmionic spin configurations at room temperature is essential for exploring the applicable spintronics devices based on topological spin textures. In this work, the anisotropic magnetic properties and critical behavior are investigated in noncollinear itinerant magnet PrMn2Ge2. The strongly anisotropic magnetic interactions and magnetic field and temperature induced antiferromagnetic to ferromagnetic transition are observed. The critical behavior of high temperature ferromagnetic transition at 331 K was analyzed, and the critical exponents β = 0.335, γ = 0.878, and δ = 3.617 are extracted by the modified Arrott plot method, which lie between the values of long-range mean-field and short-range three-dimensional theories, demonstrating that PrMn2Ge2 possesses multiple magnetic interactions. This is also confirmed by the moderated interaction function, which is decay as J( r) ∼ [Formula: see text]. Therefore, the competition of multiple magnetic interactions in PrMn2Ge2 is analogous to what has been observed in GdRu2Si2 and could be the origin of skyrmionic bubbles observed at room temperature.
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影响因子:
6.2
作者:
R. Welter;G. Venturini;E. Ressouche;B. Malaman
通讯作者:
R. Welter;G. Venturini;E. Ressouche;B. Malaman
影响因子:
2.7
作者:
Franco, V.;Conde, A.;Blazquez, J. S.
通讯作者:
Blazquez, J. S.
影响因子:
3.2
作者:
OESTERREICHER, H;PARKER, FT
通讯作者:
PARKER, FT
影响因子:
4.4
作者:
WIDOM, B
通讯作者:
WIDOM, B
DOI:
10.1063/1.3048415
发表时间:
1966
期刊:
--
影响因子:
--
作者:
J. Smart;J. H. Van Vleck
通讯作者:
J. Smart;J. H. Van Vleck