arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1005.0192cond-mat.supr-con
收藏

具有体特性的FeSe1-x超导薄膜的制备

Fabrication of FeSe1-x superconducting films with bulk properties

Soon-Gil Jung, Nam Hoon Lee, Eun-Mi Choi, Won Nam Kang, Sung-Ik Lee, Tae-Jong Hwang, Dong Ho Kim

摘要:

我们用脉冲激光沉积技术在Al_2O_3(0001)、SrTiO_3(100)、MgO(100)和LaAlO_3(100)衬底上制备了高质量的FeSe_(1-x)超导薄膜,其体相Tc为11-12 K。所有薄膜均在610 ℃的高温衬底下生长,且均沿(101)方向择优取向,后者是制备高Tc FeSe 1-x超导薄膜的关键。根据能量色散光谱数据,Fe:Se组成比为1:0.90 ± 0.02。当临界磁场[Hc 2(0)]为56 T时,在SrTiO 3衬底上生长的FeSe 1-x薄膜质量最好。

英文摘要:

We have fabricated high-quality FeSe1-x superconducting films with a bulk Tc of 11-12 K on different substrates, Al2O3(0001), SrTiO3(100), MgO(100), and LaAlO3(100), by using a pulsed laser deposition technique. All the films were grown at a high substrate temperature of 610 oC, and were preferentially oriented along the (101) direction, the latter being to be a key to fabricating of FeSe1-x superconducting thin films with high Tc. According to the energy dispersive spectroscopy data, the Fe:Se composition ratio was 1:0.90+-0.02. The FeSe1-x film grown on a SrTiO3 substrate showed the best quality with a high upper critical magnetic field [Hc2(0)] of 56 T.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑