Suppression of the "notch effect" in microwave surface resistance in YBa2Cu3O7 films on MgO (100) substrate by deposition of ultra-thin SrTiO3 seed layers

被引：19

作者：

Contour, JP ^{[1
]}

Couvert, C

Durand, O

Lemaître, Y

Lyonnet, R

Marcilhac, B

机构：

[1] Thomson CSF, Unite Mixte Phys CNRS, F-91404 Orsay, France

[2] Thomson CSF, LCR, F-91404 Orsay, France

来源：

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 1999年 / 5卷 / 01期

关键词：

D O I：

10.1051/epjap:1999100

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

RHEED controlled ultra-thin buffer layers of SrTiO3 have been deposited on (100) MgO by pulsed laser deposition to growth YBaCuO films for microwave applications. A buffer layer with a thickness between 2 and 15 nm, i.e. 5 to 40 unit cells of SrTiO3, is sufficient to expand to more than 60 degrees C the range of deposition temperatures leading to low microwave surface resistance. The Rs values are as good as those obtained on LaAlO3 substrates with a slighly lower magnetic field dependency. The SrTiO3 seed layer induces an oriented epitaxial growth with YBCO [100] // MgO [100] over this range of deposition temperatures.

引用

页码：3 / 8

页数：6

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