Magnetic Properties, Magnetocaloric Effect, and Critical Behavior of Gd – Co – Ge Amorphous Ribbons


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Аннотация

The effect of structural disordering on the magnetic properties and magnetocaloric effect of amorphous (Gd4Co3)1–xGex (x = 0, 0.05, 0.10, 0.15) alloys is studied. The structure of the ribbons after melt-spinning is determined using an x-ray diffractometer. The thermal analysis is performed with the help of a differential scanning calorimeter. The temperature of the start of crystallization is determined. The magnetic properties are measured in a PPMS-9 system. The Curie temperature and the temperature dependence of the magnetization are determined. Different models are used for describing the critical exponents of the magnetic phase transitions.

Авторлар туралы

Z. Zheng

School of Materials Science and Engineering, South China University of Technology; Department of Chemistry and Chemical Biology, McMaster University

Хат алмасуға жауапты Автор.
Email: mszgzheng@scut.edu.cn
ҚХР, Guangzhou; Hamilton

Y. Li

School of Environmental and Chemical Engineering of Dalian University; Department of Chemistry and Chemical Biology, McMaster University

Email: mszgzheng@scut.edu.cn
ҚХР, Dalian; Hamilton

A. He

Department of Chemistry and Chemical Biology, McMaster University

Email: mszgzheng@scut.edu.cn
Канада, Hamilton

Y. Mozharivskyj

Department of Chemistry and Chemical Biology, McMaster University

Email: mszgzheng@scut.edu.cn
Канада, Hamilton

H. Yu

School of Materials Science and Engineering, South China University of Technology

Email: mszgzheng@scut.edu.cn
ҚХР, Guangzhou

D. Zeng

School of Materials Science and Engineering, South China University of Technology

Email: mszgzheng@scut.edu.cn
ҚХР, Guangzhou

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