2017年4月
Effect of Pressure on Magnetism of UIrGe
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
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- 巻
- 86
- 号
- 4
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.7566/JPSJ.86.044709
- 出版者・発行元
- PHYSICAL SOC JAPAN
We report the effect of hydrostatic pressure on the electronic state of the antiferromagnet UIrGe, which is isostructural and isoelectronic with the ferromagnetic superconductors UCoGe and URhGe. A series of electrical resistivity measurements in a piston - cylinder- type cell and a cubic-anvil cell were performed at hydrostatic pressures up to 15 GPa. The Neel temperature decreases with increasing pressure. We constructed a p-T phase diagram and estimated the critical pressure pc, where the antiferromagnetism vanishes, as similar to 12 GPa. The antiferromagnetic/paramagnetic transition appears to be first order. We suggest a scenario of competing antiferromagnetic inter-J- and ferromagnetic intra-J*-chain interactions in UIrGe. A moderate increase in the effective electron mass was detected in the vicinity of pc. A discussion of the electronic specific heat. and electron - electron correlation term A using the Kadowaki-Woods relation is given.
- リンク情報
- ID情報
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- DOI : 10.7566/JPSJ.86.044709
- ISSN : 0031-9015
- Web of Science ID : WOS:000399326600027