2001初日本科学家Akimistu等人发现了MgB2的超导电性，立即引起了世界的广泛关注。 高达39K的超导转变温度和其优良特性使其在应用方面普遍看好。 本工作是对MgB2薄膜的制备方法和其输运性质的研究。用PLD法制备MgB2薄膜。改变薄膜的生长条件：Mg或Mg-B的溅射时间、退火温度及退火时间，生长出的薄膜性质有所不同。对薄膜性质加以分析比较，可以得出MgB2薄膜生长的较为优化的条件。 本文首先介绍了超导理论的基本概念、 的超导性质和制备方法，在此基础上介绍了我们实验的具体内容。

Japanese scientist Akimitsu with his colleagues discovered the superconductivity of MgB2, which immediately attracted great interest in the word. MgB2’s high transition temperature which is 39K and its outstanding features make it well for application. the preparation and transport properties of MgB2 thin films is investigated in our work. We fabricated MgB2 films by Pulsed Laser Deposition (PLD). When we changed the building conditions, the nature of the film changed as well. Analyzing the nature of the film, we got the most optimal building condition. In this article, we first introduced the basic theory of superconductivity. Then we report the feature and the fabrication method of MgB2. Finally, we introduce our work in the laboratory.