当前位置: X-MOL 学术Supercond. Sci. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Pulsed laser deposition of Fe-oxypnictides: Co- and F-substitution
Superconductor Science and Technology ( IF 3.6 ) Pub Date : 2020-08-23 , DOI: 10.1088/1361-6668/ababea
S Haindl 1 , M Sato 2 , S Wurmehl 3 , B Bchner 3 , E Kampert 4
Affiliation  

The majority of thin film studies that were devoted to Fe-oxyarsenides has focused so far on F-substituted ( i.e. indirectly electron doped) Ln OFeAs ( Ln = La, Nd, Sm). Here we turn our attention towards Co-substituted ( i.e. directly electron doped) LaOFeAs and SmOFeAs in order to investigate its growth on different substrate materials by using pulsed laser deposition (PLD). We detected dominant Ln OFeAs phase formation and discuss the occurrence of minor impurity phases in the different films on different substrates. The lack of a superconducting transition in Ln OFe 0.85 Co 0.15 As films on MgO(100) could be due to strain, since we observe an onset of superconductivity in SmOFe 1 − x Co x As ( x = 0.07, 0.15) films on other oxide substrates. In addition, Co-substitution ( i.e. within the Fe 2 As 2 layers) and F-substitution ( i.e. within the Ln ...

中文翻译:

脉冲激光沉积三氧化二铁:共取代和氟取代

迄今为止,大多数致力于铁氧化砷的薄膜研究都集中在F取代(即间接电子掺杂)的Ln OFeAs(Ln = La,Nd,Sm)上。在这里,我们将注意力转向共取代(即直接电子掺杂)的LaOFeAs和SmOFeAs,以便通过使用脉冲激光沉积(PLD)研究其在不同衬底材料上的生长。我们检测到主要的Ln OFeAs相形成,并讨论了在不同基板上的不同薄膜中次要杂质相的出现。MgO(100)上的Ln OFe 0.85 Co 0.15 As薄膜缺乏超导转变可能是由于应变,因为我们观察到SmOFe 1-x Co x As(x = 0.07,0.15)薄膜上出现了超导现象。氧化物基底。另外,共取代(即在Fe 2 As 2层内)和F取代(即
更新日期:2020-08-24
down
wechat
bug