稀土掺杂对石榴石铁氧体单晶外延膜结构与性能的影响Effect of rare earth doping on the structure and properties of garnet ferrite single crystal epitaxial films
李俊,张星梅,李阳,蒋金秀,刘庆元,魏源,刘进,肖礼康,张燕
摘要(Abstract):
以高纯氧化物为原材料,采用液相外延法制备出四种不同组分的石榴石铁氧体单晶薄膜,研究了离子掺杂对材料性能的影响。结果表明,所有样品有且只有单一的衍射峰,均为石榴石相,薄膜表面粗糙度均在1 nm以下;静态磁性能测试表明,所有样品均表现出垂直各向异性,且薄膜自发磁化状态下的磁畴宽度随各向异性场的减小而减小,当各向异性场为2805 Oe时,磁畴宽度为4μm,当各向异性场减小至1183 Oe时,磁畴宽度为1μm,意味着仅需更小的外加磁场即可使材料达到饱和磁矩,可有效降低器件体积。
关键词(KeyWords): 石榴石铁氧体;单晶薄膜;液相外延;离子掺杂
基金项目(Foundation): 中国博士后科学基金面上项目(2024M751791)
作者(Author): 李俊,张星梅,李阳,蒋金秀,刘庆元,魏源,刘进,肖礼康,张燕
DOI: 10.19594/j.cnki.09.19701.2026.01.003
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