Application of electrochemical method to microfabricated region in single-crystal device of FeSe1−xTex superconductors
Application of electrochemical method to microfabricated region in single-crystal device of FeSe1−xTex superconductors
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DOI：
10.7567/jjap.57.040305
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发表时间：
2018-02
影响因子：
1.5
通讯作者：
K. Okada;T. Takagi;M. Kobayashi;Haruka Ohnuma;T. Noji;Y. Koike;S. Ayukawa;H. Kitano
中科院分区：
文献类型：
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作者：
K. Okada;T. Takagi;M. Kobayashi;Haruka Ohnuma;T. Noji;Y. Koike;S. Ayukawa;H. Kitano
将电化学方法应用于铁基硫系超导体，在提高其超导转变温度等方面具有很大的潜力。遗憾的是，这种方法仅限于大比表面积的多晶粉末或薄膜样品。在这里，我们证明了将电化学方法与聚焦离子束微加工技术相结合，可以有效地应用于FeSe1−xTex超导体的单晶器件。我们的结果为开发高质量的层状铁基硫化物超导器件开辟了一条新的途径，这种超导器件的性质是由电化学控制的。
The application of an electrochemical method to the iron-based chalcogenide superconductors has great potentials in enhancing their properties such as the superconducting transition temperature. Unfortunately, this method has been limited to polycrystalline powders or thin film samples with a large surface area. Here, we demonstrate that the electrochemical method can be usefully applied to single-crystal devices of FeSe1−xTex superconductors by combining it with the focused ion beam (FIB) microfabrication techniques. Our results open a new route to developing the high-quality superconducting devices fabricated using layered iron-based chalcogenides, whose properties are electrochemically controlled.