物理学报2012，Vol.61Issue(19)：438-444,7.
钛离子辐照对MgB2超导薄膜的载流能力和磁通钉扎能力的影响
The effects of Ti ion-irradiation on critical current and flux pinning in MgB2 thin film
摘要
Abstract
High-quality MgB2 films are fabricated via hybrid physical-chemical vapor deposition (HPCVD) and irradiated by Ti ions. Com- pared with the unirradiated film, the Ti-irradiated MgB2 film shows a high critical current density (Jc) in magnetic field and also a high upper critical field (He2), while the superconducting transition temperature (Tc) does not decrease significantly. The Ti-irradiated film with a best fluence at 1×1013/cm2 shows a high Jc of 1.72×105 A/cm2 in 4 T perpendicular field at a temperature of 5 K and a moderately decreased Tc at 39.9 K.关键词
MgB2超导薄膜/钛离子辐照/钛掺杂/混合物理化学气相沉积法Key words
MgB2 thin films/Ti ion-irradiation/hybrid physical-chemical vapor deposition分类
信息技术与安全科学引用本文复制引用
王银博,薛驰,冯庆荣..钛离子辐照对MgB2超导薄膜的载流能力和磁通钉扎能力的影响[J].物理学报,2012,61(19):438-444,7.基金项目
国家重点基础研究发展计划（批准号：2006CD601004,201ICB605904,2011CBA00104）和国家基础科学人才培养基金（批准号：J0630311）资助的课题. （）
