金属间化合物
等结构
霍尔效应
分子束外延
凝聚态物理
磁化
拓扑(电路)
稀土
材料科学
类型(生物学)
磁场
结晶学
物理
晶体结构
化学
纳米技术
外延
地质学
冶金
图层(电子)
古生物学
数学
合金
量子力学
组合数学
作者
Y. Watanabe,Shinichi Nishihaya,M. Kriener,Ayano Nakamura,Masaki Uchida
摘要
Rare-earth intermetallic compounds crystallized in AlB2-type and its low-symmetry derivative CeCu2-type structures potentially host diverse frustrated magnetic structures and rich magnetotransport phenomena. We report the film growth of CeCu2-type EuZn2 by molecular beam epitaxy and the observation of topological Hall responses highly contrastive to isostructural EuCd2. While their magnetization curves are rather similar, the topological Hall effect observed in EuZn2 is simpler, with the only one component enhanced at the magnetic transition field. EuZn2 may be a unique system for studying the magnetic domain boundary effect on topological Hall responses among the CeCu2-type rare-earth intermetallic compounds.
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