Influence of impurity of MgO substrates on properties of molecular beam epitaxy-grown superconducting NdBa2CU3O7-δ thin films

被引：4
|
作者：
Karimoto, S [1 ]
Sato, H [1 ]
Makimoto, T [1 ]
机构：
[1] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2006年 / 45卷 / 12-16期
关键词：
MgO substrates; impurity; NdBa2Cu3O7-delta thin films; RE-123 thin films; resistivity; superconducting thin films;
D O I：
10.1143/JJAP.45.L419
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We prepared various MgO substrates cut from various ingots with different impurity-Ca concentrations and deposited NdBa2Cu3O7-delta (NBCO) thin-films on them by using molecular beam epitaxy (MBE). As a result, we found that the room temperature resistivity (rho(RT)) of NBCO thin-films and the Ca concentration in an MgO substrate are quantitatively correlated. Moreover we clarified the permissible impurity-Ca concentration in MgO substrates in terms of practical microwave applications.
引用
收藏
页码：L419 / L421
页数：3
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