基于基底取向的 Bi2212 超导薄膜的生长特性和取向调谐

IF 3.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Crystal Growth & Design Pub Date : 2024-09-11 DOI:10.1021/acs.cgd.4c00911

Nan Wang, Huazhe Yang, Bowen Zhang

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引用次数: 0

摘要

本文采用溶胶-凝胶法在 LaAlO3（100）、LaAlO3（110）和 LaAlO3（111）单晶上制备了 Bi2212 超导薄膜。系统研究了平衡条件下 Bi2212 超导薄膜的生长特性。研究了 Bi2212 薄膜的相组成、形态、取向和超导转变温度。在平衡生长条件下，Bi2212 更容易沿着外延 LaAlO3(100) 生长。这是由衬底的表面能决定的，而表面能决定了 Bi2212 的成核能级。LaAlO3 的取向对 Bi2212 生长取向的调节起着重要作用。这项工作为溶胶-凝胶法制备的 Bi2212 薄膜的器件应用奠定了基础。

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Growth Characteristics and Orientation Tuning of Superconducting Thin Films of Bi2212 Based on Substrate Orientation

In this paper, Bi2212 superconducting thin films were prepared on LaAlO₃(100), LaAlO₃(110), and LaAlO₃(111) single crystals by the sol–gel method. The growth characteristics of Bi2212 superconducting films under equilibrium conditions were systematically investigated. The phase composition, morphology, orientation, and superconducting transition temperature of Bi2212 films were studied. Under the equilibrium growth conditions, Bi2212 was more easily grown along the epitaxial LaAlO₃(100). It was determined by the surface energy of the substrate, and the surface energy determined the nucleation energy level of Bi2212. The orientations of LaAlO₃ played a significant role in the regulation of the growth orientation of Bi2212. This work lays the foundation for the device application of Bi2212 thin films prepared by the sol–gel method.

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来源期刊

Crystal Growth & Design 化学-材料科学：综合

CiteScore

6.30

自引率

10.50%

发文量

650

审稿时长

1.9 months

期刊介绍： The aim of Crystal Growth & Design is to stimulate crossfertilization of knowledge among scientists and engineers working in the fields of crystal growth, crystal engineering, and the industrial application of crystalline materials. Crystal Growth & Design publishes theoretical and experimental studies of the physical, chemical, and biological phenomena and processes related to the design, growth, and application of crystalline materials. Synergistic approaches originating from different disciplines and technologies and integrating the fields of crystal growth, crystal engineering, intermolecular interactions, and industrial application are encouraged.