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Volume shrinkage dependence of ferromagnetic moment in lanthanide ferromagnets gadolinium, terbium, dysprosium, and holmium |
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| Authors: | Masaki Mito Kazuya Matsumoto Hiroyuki Deguchi Takayuki Tajiri Tatsuya Kawae Kazuyoshi Takeda |
| Institution: | a Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan b Faculty of Science, Fukuoka University, Fukuoka 814-0180, Japan c Department of Applied Quantum Physics, Kyushu University, Fukuoka 812-8581, Japan d Faculty of Engineering, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan |
| Abstract: | The Gd-Ho series of lanthanide ferromagnets, which includes gadolinium (Gd), terbium (Tb), dysprosium (Dy), and holmium (Ho), undergoes similar structural transitions, e.g., the hcp→Sm-type→dhcp→fcc transitions, under pressure. Through high-field DC magnetic measurements and structural analyses, we found that the ferromagnetic moments disappeared at a specified critical pressure, which resulted in volume shrinkage of 16.7±1.7% for each ferromagnet. The results of the present study suggest that the disappearance of the ferromagnetic moments of Gd-Ho under pressure could be understood within the framework of a band picture related to volume shrinkage. |
| Keywords: | A Elements A Magnetic materials C High pressure D Magnetic properties D Crystal structure |
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