Observation of the Stranski-Krastanov growth transition in GdBa2Cu3O7-delta films

被引：13

作者：

Dediu, V

Kursumovic, A

Greco, O

Biscarini, F

Matacotta, FC

机构：

[1] CNR,LAMEL,AREA RIC,I-40129 BOLOGNA,ITALY

[2] CNR,ISM,AREA RIC,I-40129 BOLOGNA,ITALY

[3] INST PHYS APPL,HTSC LAB,KISHINEV,MOLDOVA

[4] CIRM,ENERGOINVEST,SARAJEVO,BOSNIA & HERCEG

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.54.1564

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The growth of GdBa2Cu3O7-delta films on NdGaO3 (100) from the early stages of nucleation was monitored by in situ electrical conductivity measurements. A breakpoint in the dependence of conductivity versus thickness was observed at some critical thickness. Atom force microscopy investigations indicate that this critical thickness corresponds to the Stranski-Krastanov growth transition from two-dimensional (2D) layer-by-layer growth to 3D growth. The critical thickness was found to be very sensitive to the substrate density of defects and temperature.

引用

页码：1564 / 1567

页数：4

共 11 条

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