| 离轴生长的MgB_2超导薄膜的研究 |
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| 引用本文： | 谭腾,冯思敏,庄承钢,冯庆荣.离轴生长的MgB_2超导薄膜的研究[J].低温物理学报,2010(4). |
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| 作者姓名： | 谭腾 冯思敏 庄承钢 冯庆荣 |
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| 作者单位： | 北京大学物理学院人工微结构与介观物理国家重点实验室; |
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| 基金项目： | 国家“973”计划项目(批准号:2006CD601004); 国家基础科学人才培养基金(批准号:J0630311)资助的课题 |
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| 摘 要： | 通过混合物理化学沉积法(hybrid physical-chemical vapor deposition,简称为HPCVD),我们在多种单晶衬底上制备出了MgB2超导薄膜.经测量发现MgB2薄膜在6H-SiC、c-Al2O3、MgO(111)和YSZ(111)衬底上基本是沿c轴外延生长的,形成单晶薄膜;在MgO(211)、MgO(100)和钇稳定氧化锆(YSZ)(110)衬底上,MgB2晶粒的生长表现出明显的择优取向生长方式,并与晶格常数匹配关系所预言的结果一致。
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| 关 键 词： | 不同单晶衬底MgB2薄膜 混合物理化学沉积法 晶格常数 |
PROPERTIES OF CLEAN MgB_2 FILMS ON DIFFERENT TYPES OF SINGLE-CRYSTAL SUBSTRATES |
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| TAN Teng FENG Si-min ZHUANG Cheng-gang FENG Qing-rong.PROPERTIES OF CLEAN MgB_2 FILMS ON DIFFERENT TYPES OF SINGLE-CRYSTAL SUBSTRATES[J].Chinese Journal of Low Temperature Physics,2010(4). |
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| Authors: | TAN Teng FENG Si-min ZHUANG Cheng-gang FENG Qing-rong |
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| Institution: | TAN Teng FENG Si-min ZHUANG Cheng-gang FENG Qing-rong |
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| Abstract: | Via hybrid physical-chemical vapor deposition technique,we obtain clean MgB2 films on various substrates.On 6H-SiC,c-Al2O3,MgO(111)and YSZ(111),c-oriented epitaxial films are observed.While on MgO(211),MgO(100),yttrium-stabilized ZrO2,and YSZ(110),the films showed vivid off-epitaxial growth.By analyzing lattice constants of MgB2 and substrates,relationship between the thin films' orientation and the substrates' lattice constants is found. |
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| Keywords: | MgB2 films on different types of single-crystal substrates hybrid physical-chemical vapor deposition crystal parameters |
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