Hard x-ray photoemission spectroscopy on the trilayer system MgO/Au/Fe using standing-wave excitation

被引：2

作者：

Doering, S. ^{[1
,2
,3
]}

Schoenbohm, F. ^{[2
,3
]}

Berges, U. ^{[2
,3
]}

Buergler, D. E. ^{[4
]}

Schneider, C. M. ^{[1
,4
]}

Gorgoi, M. ^{[5
]}

Schaefers, F. ^{[5
]}

Westphal, C. ^{[2
,3
]}

机构：

[1] Univ Duisburg Essen, Fak Phys, D-47057 Duisburg, Germany

[2] Tech Univ Dortmund, D-44221 Dortmund, Germany

[3] Tech Univ Dortmund, DELTA, D-44221 Dortmund, Germany

[4] Forschungszentrum Julich, Peter Grunberg Inst, PGI 6, D-52425 Julich, Germany

[5] Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2013年 / 46卷 / 37期

关键词：

ROOM-TEMPERATURE; PHOTOELECTRON; MAGNETORESISTANCE; EMISSION;

D O I：

10.1088/0022-3727/46/37/375001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The trilayer system MgO/Au monolayer/Fe was investigated by hard x-ray photoemission experiments in combination with the standing-wave technique. The insertion of the Au layer into the Fe/MgO tunnel junction provides an additional handle to influence the properties of the interface. The recently explored method of standing-wave excited hard x-ray photoemission was used to investigate both the structural properties and chemical states of the interfacial layers in one experiment. The results show that the Au monolayer does not grow as a closed layer, but intermixes strongly with the Fe below. This behaviour results in a very sharp interface between the Au/Fe and the MgO layer on top. However, the XPS spectra show no hint for a formation of FeO at the interface.

引用

页数：7

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