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Modular high-throughput test stand for versatile screening of thin-film materials libraries

机译:模块化高通量测试台可广泛筛选薄膜材料库

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摘要

Versatile high-throughput characterization tools are required for the development of new materials using combinatorial techniques. Here, we describe a modular, high-throughput test stand for the screening of thin-film materials libraries, which can carry out automated electrical, magnetic and magnetoresistance measurements in the temperature range of −40 to 300 °C. As a proof of concept, we measured the temperature-dependent resistance of Fe–Pd–Mn ferromagnetic shape-memory alloy materials libraries, revealing reversible martensitic transformations and the associated transformation temperatures. Magneto-optical screening measurements of a materials library identify ferromagnetic samples, whereas resistivity maps support the discovery of new phases. A distance sensor in the same setup allows stress measurements in materials libraries deposited on cantilever arrays. A combination of these methods offers a fast and reliable high-throughput characterization technology for searching for new materials. Using this approach, a composition region has been identified in the Fe–Pd–Mn system that combines ferromagnetism and martensitic transformation.
机译:使用组合技术开发新材料需要多功能的高通量表征工具。在这里,我们描述了一种用于筛选薄膜材料库的模块化高通量测试台,该测试台可以在−40至300°C的温度范围内进行自动的电,磁和磁阻测量。作为概念的证明,我们测量了Fe–Pd–Mn铁磁形状记忆合金材料库的温度相关电阻,揭示了可逆马氏体相变和相关的相变温度。材料库的磁光筛选测量可识别铁磁样品,而电阻率图则支持发现新相。采用相同设置的距离传感器可以测量悬臂阵列上沉积的材料库中的应力。这些方法的组合为寻找新材料提供了快速,可靠的高通量表征技术。使用这种方法,已经在Fe-Pd-Mn系统中确定了一个将铁磁性和马氏体相结合的组成区域。

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