Depth-dependent magnetic characterization of Fe films on NiO(001)

被引：5

作者：

Luches, P. ^{[1
]}

Benedetti, S. ^{[1
]}

Pasquini, L. ^{[2
,3
]}

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

Zajac, M. ^{[4
]}

Korecki, J. ^{[4
]}

Rueffer, R. ^{[5
]}

Valeri, S. ^{[1
,6
]}

机构：

[1] CNR, INFM, I-41125 Modena, Italy

[2] Univ Bologna, Dept Phys, I-40127 Bologna, Italy

[3] Univ Bologna, CNISM, I-40127 Bologna, Italy

[4] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland

[5] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[6] Univ Modena & Reggio Emilia, Dept Phys, I-41125 Modena, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2010年 / 268卷 / 3-4期

关键词：

Iron; Nickel oxide; Magnetism; Mossbauer spectroscopy; Nuclear resonant scattering of synchrotron radiation Ferromagnetic/antiferromagnetic interfaces; MOSSBAUER-SPECTROSCOPY; NUCLEAR-RESONANCE; HYPERFINE FIELD; SPACE PICTURE; X-RAYS; SCATTERING; ANISOTROPY; INTERFACE; TIME;

D O I：

10.1016/j.nimb.2009.09.048

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We used nuclear hyperfine spectroscopies and a Fe-57 probe layer approach to Study the depth-dependent magnetic properties of ultrathin Fe films on NiO(0 0 1), a system exhibiting exchange bias. Conversion electron Mossbauer spectroscopy and nuclear resonance scattering of synchrotron radiation were employed. The samples were two Fe films with a thickness (8-10 ML) slightly above the critical thickness for the onset of ferromagnetism at room temperature, in which a 2 ML-thick probe layer, enriched in the,7 Fe Mossbauer isotope, was embedded at different depths from the Fe/NiO interface. Both techniques indicate that inside the film Fe has a metallic character, while at the interface with NiO different Fe phases are present. The main conclusion is that already a few monolayers from the interface with NiO the magnetic properties of Fe are bulk-like. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：361 / 364

页数：4

共 27 条

[1] Chemical reactions and interdiffusion at the Fe/NiO(001) interface [J].