Magnetic and Transport Properties of Frustrated γ-MnPd alloys

TMU International Symposium on "New Quantum Phases Emerging from Novel Crystal Structure"

Higo, T.^1 ; Kiyohara, N.^1 ; Iritani, K.^1 ; Nugroho, A.A.^2 ; Tomita, T.^1 ; Nakatsuji, S.^1,3

Institute for Solid State Physics, University of Tokyo, Chiba, Kashiwa

277-8581, Japan^1

Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Jawa Barat, Bandung

40132, Indonesia^2

PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama

332-0012, Japan^3

关键词: Antiferromagnetics;    Characteristic temperature;    Magnetic and transport properties;    Non-coplanar;    Q-phase;    Resistivity measurement;    Spin structures;    Structural phase transition;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/683/1/012026/pdf
DOI  :  10.1088/1742-6596/683/1/012026

来源: IOP

【 摘 要 】

We have synthesized γ-Mn1-xPdxalloys with x = 0.22 and 0.24 and carried out the susceptibility and resistivity measurements. The γ-Mn1-xPdxshows the Néel transition to the non-coplanar antiferromagnetic 3Q phase at ∼ 290 K for x = 0.22 and at ∼ 250 K for x = 0.24. Below the Néel temperature, two characteristic temperatures, which support the existence of the magnetic and structural phase transitions, were observed. These results were used to construct a phase diagram of the γ-Mn1-xPdxalloys with high x concentrations where non-collinear and/or non-coplanar spin structures are expected.