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钕:钇铝石榴石红外激光作为准分子激光的可行替代品:YBCO 案例研究。

Nd:YAG infrared laser as a viable alternative to excimer laser: YBCO case study.

机构信息

CNR-IOM Istituto Officina dei Materiali, TASC Laboratory, Area Science Park, s.s.14 km 163.5, 34149, Trieste, Italy.

International Centre for Theoretical Physics (ICTP), Strada Costiera 11, 34151, Trieste, Italy.

出版信息

Sci Rep. 2023 Mar 8;13(1):3882. doi: 10.1038/s41598-023-30887-3.

DOI:10.1038/s41598-023-30887-3
PMID:36890286
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9995509/
Abstract

We report on the growth and characterization of epitaxial YBa[Formula: see text]Cu[Formula: see text]O[Formula: see text] (YBCO) complex oxide thin films and related heterostructures exclusively by Pulsed Laser Deposition (PLD) and using first harmonic Nd:Y[Formula: see text]Al[Formula: see text]O[Formula: see text] (Nd:YAG) pulsed laser source ([Formula: see text] = 1064  nm). High-quality epitaxial YBCO thin film heterostructures display superconducting properties with transition temperature [Formula: see text] 80 K. Compared with the excimer lasers, when using Nd:YAG lasers, the optimal growth conditions are achieved at a large target-to-substrate distance d. These results clearly demonstrate the potential use of the first harmonic Nd:YAG laser source as an alternative to the excimer lasers for the PLD thin film community. Its compactness as well as the absence of any safety issues related to poisonous gas represent a major breakthrough in the deposition of complex multi-element compounds in form of thin films.

摘要

我们通过脉冲激光沉积（PLD）并用第一谐波 Nd：Y[Formula: see text]Al[Formula: see text]O[Formula: see text]（Nd：YAG）脉冲激光源（[Formula: see text] = 1064nm）专门报道了外延 YBa[Formula: see text]Cu[Formula: see text]O[Formula: see text]（YBCO）复合氧化物薄膜和相关异质结构的生长和特性。高 质量外延 YBCO 薄膜异质结构显示出超导特性，转变温度 [Formula: see text] 80 K。与准分子激光器相比，当使用 Nd：YAG 激光器时，在大的靶-衬底距离 d 下可达到最佳生长条件。这些结果清楚地表明，第一谐波 Nd：YAG 激光源作为准分子激光器的替代物，可用于 PLD 薄膜领域。它的紧凑性以及与有毒气体相关的任何安全问题的缺失，代表了以薄膜形式沉积复杂多元素化合物的重大突破。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/3dcde0310cc1/41598_2023_30887_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/5b2fb0ff281c/41598_2023_30887_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/942524fa557e/41598_2023_30887_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/c36432fcb487/41598_2023_30887_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/f9016b485f29/41598_2023_30887_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/812029acfa7d/41598_2023_30887_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/3dcde0310cc1/41598_2023_30887_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/5b2fb0ff281c/41598_2023_30887_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/942524fa557e/41598_2023_30887_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/c36432fcb487/41598_2023_30887_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/f9016b485f29/41598_2023_30887_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/812029acfa7d/41598_2023_30887_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4139/9995509/3dcde0310cc1/41598_2023_30887_Fig6_HTML.jpg

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