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journal article·2018-10-01Open access

Arrott plots, M4 plots and the critical temperature of the weak ferromagnet FeGa3−yGey

Yao Zhang, Yoshinori Takahashi, Masaki Imai, Guohua Wang, Marcos A. Avila, Toshiro Takabatake, Chishiro Michioka, Hiroaki Ueda, Kazuyoshi Yoshimura, Jie Ma

AIP Advances· Volume 8· Issue 10
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Source abstract

Abstract

The Curie temperature TC of the weakly ferromagnetic system FeGa3−yGey is investigated by means of isothermal magnetization experiments. The critical temperature of the ferromagnetic phase transition is estimated by the so-called M4 plots rather than the Arrott plots technique. The M4 plots are exploited from the sixth power term of the expanded free energy, which is neglected by the Arrott plots. The magnetic properties are analyzed by taking into account the effects of spin fluctuations in terms of related spin-fluctuation theories.
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Research context

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Rare-earth and actinide compounds · Physics of Superconductivity and Magnetism

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University 1 , Shanghai 200240, China

Department of Chemistry, Graduate School of Science, Kyoto University 2 , Kyoto 606-8502, Japan

Graduate School of Material Science, University of Hyogo 3 , 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan

Key Laboratory of Artificial Structures and Quantum Control, School of Physics and Astronomy, Shanghai Jiao Tong University 4 , Shanghai 200240, China

Centro de Ciências Naturais e Humanas, Universidade Federal do ABC 5 , Santo André-SP 09210-580, Brazil

Graduate School of Advanced Sciences of Matter, Hiroshima University 6 , Higashi-Hiroshima 739-8530, Japan

International Research Unit of Integrated Complex System Science, International Research Unit of Advanced Future Studies, Kyoto University 7 , Kyoto 606-8502, Japan

Funding

National Natural Science Foundation of China · Ministry of Education, Culture, Sports, Science and Technology

References (17)

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