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离子注入合成β-FeSi2薄膜的显微结构

Li XiaonaNie DongChuang DongMa TengcaiJin XingZhang Zhe(1)三束材料改性国家重点联合实验室大连理工大学分部 ,大连理工大学材料工程系 ,大连  1 1 60 2 4; (2)三束材料改性国家重点联合实验室大连理工大学分部,大连理工大学材料工程系,大连116024中国科学院北京电子显微镜实验室北京100080; (3)中国科学院北京电子显微镜实验室,北京100080

2002Acta Physica SinicaPhysics and Astronomy被引 5开放获取

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摘要

Iron silicidefilmshavebeensynthesizedbymetalvaporvacuumarc (MEVVA)ionimplantationofironinto (1 1 1 )and (1 0 0 )orientedsiliconwafers.Thestructureevolutionwascharacterizedusingtransmissionelectronmicroscopy (TEM)andhighresolutionelectronmicroscopy (HREM) .TheβFeSi2filmsandburiedlayerswithdifferentdepthandthicknesswereobtainedbyadjustingtheimplantationenergyanddose .Theformationofα,β,γandCsCl FeSi2 phaseshavebeenobserved .ThephasetransitionorderisγFeSi2→βFeSi2→αFeSi2,CsClFeSi2→βFeSi2→αFeSi2 or βFeSi2→αFeSi2.Anamorphouslayerwasformedat60kVand 4× 1 0 1 7ions cm2 ,thephasetransitionorderisamorphous→β FeSi2 →α FeSi2 .Themorphologyandpositionofthesilicidefilmschangewiththeannealingtemperature.Thesilicidegrainsgrowwithincreasingannealingtemperaturewithfurtherincreaseoftemperature ,thecontinuoussilicidelayersshrinkintoisolatedislandsandtheinterfaceβ FeSi2 Sibe comesrougher.Inthispaper,thecomplicatedorientationrelationshipsexistingbetweenβ FeSi2 andSiwerealsoinvestigated

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Li Xiaona, Nie Dong, Chuang Dong, 等. 离子注入合成β-FeSi2薄膜的显微结构[J]. Acta Physica Sinica, 2002.

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DOI:https://doi.org/10.7498/aps.51.115

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