Magnetic behavior of Ru substituted skyrmion metal MnSi

被引：2
|
作者：
Samatham, S. Shanmukharao [1 ]
Singh, Saurabh [2 ]
Patel, Akhilesh Kumar [3 ,4 ]
Reddy, S. Shravan Kumar [1 ]
Takeuchi, Tsunehiro [2 ]
Suresh, K. G. [3 ]
机构：
[1] Chaitanya Bharathi Inst Technol, Dept Phys, Hyderabad 500075, India
[2] Toyota Technol Inst, Energy Mat Lab, Tempaku Ku, Nagoya, Aichi 4688511, Japan
[3] Indian Inst Technol, Dept Phys, Mumbai 400076, Maharashtra, India
[4] Tel Aviv Univ, Dept Mat Sci & Engn, Fac Engn, IL-69978 Tel Aviv, Israel
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2022年 / 34卷 / 34期
关键词：
MnSi; critical exponents; magnetoresistance; magnetoentropy; NON-FERMI-LIQUID; TRANSPORT-PROPERTIES; PHASE; STATE; TRANSITIONS; FEXCO1-XSI;
D O I：
10.1088/1361-648X/ac783a
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report on the structural and magnetic properties of Ru substituted skyrmion metal MnSi i.e. Mn1-xRuxSi for the nominal compositions of 0 <= x <= 0.5. The composition-temperature (x-T) phase diagram illustrates the substitution-driven changes in the magnetic behavior. It is confirmed that the magnetic ordering temperature (para-to helimagnetic) T-tr and the effective magnetic mu(eff) moment decrease with increasing x. This indicates the suppression of magnetic order by the substitution of Ru in MnSi. However, the magnetic nature is sustained up to a concentration of about x = 0.1 above which the system exhibits spin-glass like nature as inferred from the negative Curie-Weiss temperature theta(CW), reduced magnetic moment (of the order 10(-2) mu(B) f.u.(-1)) and linear M-H (at 2 K) in x = 0.5. Mn1-xRuxSi is found to avoid the quantum phase transition and exhibits a composition-driven magnetic to spin-glass like transition.
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页数：8
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