Highly Textured Superconducting FeSe0.5Te0.5 Thin Films on Glass Substrates

• Published in: Jpn J Appl Phys 2013-02, Vol.52 (2), p.020201-020201-4
• Main Authors: Chen, Li, Tsai, Chen-Fong, Lee, Joon Hwan, Zhang, Xinghang, Wang, Haiyan
• Format: Article
• Language: English
• ISSN: 0021-4922; 1347-4065
• DOI: 10.7567/JJAP.52.020201

Superconducting FeSe 0.5 Te 0.5 thin films are deposited on amorphous substrates, i.e., glass substrates by a pulsed laser deposition (PLD) technique. Microstructural characterizations show that the films are highly textured along ($00l$) with good crystallinity. The superconducting critical transition temperature ($T_{\text{c}}$) ranges from ${\sim}8$ to ${\sim}10$ K. The self-field critical current density ($J_{\text{c}}^{\text{sf}}$) at 4 K is ${\sim}1.2\times 10^{4}$ A/cm 2 . The in-field critical current density ($J_{\text{c}}^{\text{in-field}}$) decreases slowly under high magnetic field confirmed by both transport and magnetization measurements. The growth of high quality superconducting FeSe 0.5 Te 0.5 thin films on amorphous substrates demonstrates a low cost architecture for future Fe-based superconductor coated conductors.