Coherent interfacial bonding on the FeAs tetrahedron in Fe/Ba(Fe1-xCox)2As2 bilayers

被引：51

作者：

Thersleff, T. ^{[1
]}

Iida, K. ^{[1
]}

Haindl, S. ^{[1
]}

Kidszun, M. ^{[1
]}

Pohl, D. ^{[1
]}

Hartmann, A. ^{[1
]}

Kurth, F. ^{[1
]}

Haenisch, J. ^{[1
]}

Huehne, R. ^{[1
]}

Rellinghaus, B. ^{[1
]}

Schultz, L. ^{[1
]}

Holzapfel, B. ^{[1
]}

机构：

[1] IFW Dresden, Inst Metall Mat, D-01171 Dresden, Germany

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 02期

关键词：

Superconducting transition temperature - Arsenic compounds - Iron-based Superconductors - Single crystals - High resolution transmission electron microscopy - Iron compounds - Barium compounds - Crystal structure - Iron - Magnesia;

D O I：

10.1063/1.3457432

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate the growth of epitaxial Fe/Ba(Fe1-xCox-2As2 bilayers on MgO(001) and (La, Sr)(Al, Ta)O-3(001) single crystal substrates using pulsed laser deposition (PLD). This architecture produces a coherent interfacial bond between body-centered cubic iron and Bs(Fe1-xCox)(2)As-2 (Ba-122). The superconducting transition temperatures for both bilayers remain close to that of the PLD target. Direct observation of interfacial bonding between Fe and the Ba-122 FeAs sublattice by atomic resolution transmission electron microscopy implies that this bilayer architecture may work for other iron pnictide systems and pave the way for their fabrication into superconducting/ferromagnetic heterostructures. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3457432]

引用

页数：3

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