Electrodeposition as a new route to synthesize superconducting FeSe

We have successfully synthesized FeSe films by the electrochemical deposition in the electrolyte containing FeCl_{2}\cdot4H_{2}O, SeO_{2} and Na_{2}SO_{4}. The composition ratio of Fe and Se was controlled by the synthesis voltage and pH value. The FeSe film with the composition ratio of Fe : Se = 1...

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Bibliographic Details
Published inarXiv.org
Main Authors Demura, Satoshi, Okazaki, Hiroyuki, Ozaki, Toshinori, Hara, Hiroshi, Kawasaki, Yasuna, Deguchi, Keita, Watanabe, Tohru, Saleem James Denholme, Mizuguchi, Yoshikazu, Yamaguchi, Takahide, Takeya, Hiroyuki, Takano, Yoshihiko
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 29.05.2012
Subjects
Composition
Electric potential
Physics - Superconductivity
Superconductivity
Synthesis
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Summary:We have successfully synthesized FeSe films by the electrochemical deposition in the electrolyte containing FeCl_{2}\cdot4H_{2}O, SeO_{2} and Na_{2}SO_{4}. The composition ratio of Fe and Se was controlled by the synthesis voltage and pH value. The FeSe film with the composition ratio of Fe : Se = 1 : 1 is fabricated at a voltage of -0.9 V and pH 2.1 in our electrochemical deposition. This sample has a highly crystalline tetragonal FeSe structure and exhibits a superconducting transition at 8.1 K, comparable to FeSe synthesized by other methods.
ISSN:2331-8422
DOI:10.48550/arxiv.1205.6378