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タイトル
和文:Challenges for Pulsed Laser Deposition of FeSe Thin Films 
英文:Challenges for Pulsed Laser Deposition of FeSe Thin Films 
著者
和文: 小畑由紀子, Igor A. Karateev, Ivan Pavlov, Alexander L. Vasiliev, Haindl Silvia.  
英文: Yukiko Obata, Igor A. Karateev, Ivan Pavlov, Alexander L. Vasiliev, Silvia Haindl.  
言語 English 
掲載誌/書名
和文:Micromachines 
英文:Micromachines 
巻, 号, ページ Vol. 12    No. 10    pp. 1224
出版年月 2021年10月7日 
出版者
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英文: 
会議名称
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英文: 
開催地
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英文: 
公式リンク http://dx.doi.org/10.3390/mi12101224
 
DOI https://doi.org/10.3390/mi12101224
アブストラクト <jats:p>Anti-PbO-type FeSe shows an advantageous dependence of its superconducting properties with mechanical strain, which could be utilized as future sensor functionality. Although superconducting FeSe thin films can be grown by various methods, ultrathin films needed in potential sensor applications were only achieved on a few occasions. In pulsed laser deposition, the main challenges can be attributed to such factors as controlling film stoichiometry (i.e., volatile elements during the growth), nucleation, and bonding to the substrate (i.e., film/substrate interface control) and preventing the deterioration of superconducting properties (i.e., by surface oxidization). In the present study, we address various technical issues in thin film growth of FeSe by pulsed laser deposition, which pose constraints in engineering and reduce the application potential for FeSe thin films in sensor devices. The results indicate the need for sophisticated engineering protocols that include interface control and surface protection from chemical deterioration. This work provides important actual limitations for pulsed laser deposition (PLD) of FeSe thin films with the thicknesses below 30 nm.</jats:p>

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