X-ray absorption study of the local order around Mn in Mn:ZnO thin films: the role of vacancies and structural distortions

被引：32

作者：

Guglieri, C. ^{[1
,2
]}

Cespedes, E. ^{[3
]}

Prieto, C. ^{[3
]}

Chaboy, J. ^{[1
,2
]}

机构：

[1] Univ Zaragoza, Inst Ciencia Mat Aragon, CSIC, E-50009 Zaragoza, Spain

[2] Univ Zaragoza, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

[3] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2011年 / 23卷 / 20期

关键词：

K-EDGE XANES; DOPED ZNO; FERROMAGNETISM; SEMICONDUCTORS; SPECTROSCOPY;

D O I：

10.1088/0953-8984/23/20/206006

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

This work reports an x-ray absorption near-edge structure spectroscopy (XANES) study at both Mn and Zn K edges in Zn0.95Mn0.05O thin films prepared with different sputtering gases (pure Ar, Ar/N-2 and Ar/O-2). We have studied the local order around Mn in the films, with special emphasis on the role played by both oxygen and zinc vacancies and by the structural distortion associated with the substitution of Zn by Mn in the ZnO host. Our results indicate that the dependence of the magnetic properties of these Mn: ZnO thin films on the different sputtering gases used in the preparation is related to the structural distortion around Mn sites.

引用

页数：8

共 36 条

[1] Mn local order in room temperature ferromagnetic Mn/ZnO multilayers [J].

Cespedes, E. ;

Castro, G. R. ;

Jimenez-Villacorta, F. ;

de Andres, A. ;

Prieto, C. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (09)

[2] Correlation between Mn oxidation state and magnetic behavior in Mn/ZnO multilayers prepared by sputtering [J].

Cespedes, E. ;

Garcia-Lopez, J. ;

Garcia-Hernandez, M. ;

De Andres, A. ;

Prieto, C. .

JOURNAL OF APPLIED PHYSICS, 2007, 102 (03)

[3] Evolution of ferromagnetism with sputtering gas in Mn:ZnO films [J].

Cespedes, E. ;

Sanchez-Marcos, J. ;

Garcia-Lopez, J. ;

Prieto, Carlos .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2010, 322 (9-12) :1201-1204

[4] Induced ferromagnetism in Mn3N2 phase embedded in Mn/Si3N4 multilayers [J].

Cespedes, E. ;

Roman, E. ;

Huttel, Y. ;

Chaboy, J. ;

Garcia-Lopez, J. ;

de Andres, A. ;

Prieto, C. .

JOURNAL OF APPLIED PHYSICS, 2009, 106 (04)

[5]

CESPEDES E, 2009, FERROMAGNETISM WIDE

[6] Ab initio x-ray absorption study of MnK-edge XANES spectra in Mn3MC (M = Sn, Zn and Ga) compounds [J].

Chaboy, J. ;

Maruyama, H. ;

Kawamura, N. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (21)

[7] X-ray absorption spectroscopy study of the chemical ordering in UCu5-xMx (M = Ni, Ag) compounds [J].

Chaboy, J. ;

Boada, R. ;

Dura, O. J. ;

de la Torre, M. A. Lopez .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (39)

[8] X-RAY-ABSORPTION AT THE CA K-EDGE IN NATURAL-GARNET SOLID-SOLUTIONS - A FULL-MULTIPLE-SCATTERING INVESTIGATION [J].

CHABOY, J ;

QUARTIERI, S .

PHYSICAL REVIEW B, 1995, 52 (09) :6349-6357

[9] Relationship between the structural distortion and the Mn electronic state in La1-xCaxMnO3: a Mn K-edge XANES study [J].

Chaboy, Jesus .

JOURNAL OF SYNCHROTRON RADIATION, 2009, 16 :533-544

[10] Ferromagnetism in doped thin-film oxide and nitride semiconductors and dielectrics [J].

Chambers, Scott A. .

SURFACE SCIENCE REPORTS, 2006, 61 (08) :345-381

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