Magnetic Phase Transitions and Magnetoelastic Phenomena in UNiGa under Pressure

Fuminori Honda, Tomoko Kagayama, Gendo Oomi, Alexander V. Andreev, Ladislav Havela, Vladimir Sechovský, Karel Prokeš, Ekkehard Brück, Karel Prokeš

研究成果: Contribution to journalArticle査読

14 被引用数 (Scopus)

抄録

Thermal expansion and magnetostriction of UNiGa single crystal have been measured at the range of pressures up to 2.2 GPa and magnetic fields up to 1.5T. The results are reported with a special emphasis on anomalies accompanying the magnetic phase transitions and the effect of pressure on the critical parameters (transition temperature and magnetic field). Formation of a new antiferromagnetic phase induced by pressures above 1.8 GPa is revealed. Analysis of results enabled us to construct P-T magnetic phase diagrams for fields up to 1.5T. The magnetoelastic effects are discussed in terms of marked variations in electronic structure accompanying transitions between different magnetic structures with various couplings of U magnetic moments along the c-axis and involvement of strong spin-orbit interaction.

本文言語英語
ページ(範囲)1904-1907
ページ数4
ジャーナルjournal of the physical society of japan
66
7
DOI
出版ステータス出版済み - 1997
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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