Magnetic interface formation at Fe/Cr/Fe(100)

被引：2
|
作者：
Panaccione, G
Sirotti, F
Narducci, E
Cherepkov, NA
Rossi, G
机构：
[1] MESR, CEA, CNRS, UTILISAT RAYONNEMENT ELECTROMAGNET LAB, F-91405 ORSAY, FRANCE
[2] UNIV GENOA, DIPARTIMENTO FIS, INFM, I-16146 GENOA, ITALY
[3] UNIV MAINZ, INST PHYS, D-55099 MAINZ, GERMANY
[4] STATE ACAD AEROSP INSTRUMENTAT, ST PETERSBURG 190000, RUSSIA
[5] ETH ZURICH, FESTKORPERPHYS LAB, CH-8093 ZURICH, SWITZERLAND
[6] UNIV MODENA, DIPARTIMENTO FIS, INFM, I-41100 MODENA, ITALY
来源：
SURFACE SCIENCE | 1997年 / 377卷 / 1-3期
关键词：
angle resolved photoemission; chromium; iron; magnetic interfaces; magnetic surfaces; single crystal epitaxy; synchrotron radiation photoelectron spectroscopy;
D O I：
10.1016/S0039-6028(96)01443-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Photoemission magnetic dichroism of Fe and Cr 3p core levels was employed to investigate the magnetic order at the Fe/Cr/Fe(100) interface. For submonolayer and monolayer Fe coverages on Cr(100) the interface system appears magnetically frustrated, with no net magnetization along the parallel (antiparallel) direction of the substrate magnetization. The analysis of the Fe 3p photoemission dichroism allows to conclude that, at these low coverages, Fe is magnetically ordered but along an axis lying at 90 degrees from the substrate Fe(100) magnetization, favoring the interpretation of biquadratic coupling between the ultrathin iron overlayer and the bulk iron substrate, across the Cr interlayer.
引用
收藏
页码：445 / 449
页数：5
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