Inducing ferromagnetism in ZnO through doping of nonmagnetic elements

Y. W. Ma; J. B. Yi; J. Ding; L. H. Van; H. T. Zhang; C. M. Ng

doi:10.1063/1.2966360

Inducing ferromagnetism in ZnO through doping of nonmagnetic elements

Y. W. Ma
, J. B. Yi
, J. Ding^*
, L. H. Van
, H. T. Zhang
, C. M. Ng

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

In this work, Zn, Al, Pt, Ag, and Au nonmagnetic metallic films were deposited on the surface of ZnO film, followed by high vacuum annealing at different temperatures. Results showed that (Zn,Al,Pt) ZnO films possessed room temperature ferromagnetism (RTF) after the vacuum annealing, while (Ag,Au) ZnO films did not. Our detailed structural investigations (transmission electron microscopy and x-ray photoelectron spectroscopy) revealed that this RTF was associated with the presence of metal clusters. The RTF disappeared in AlZnO after a subsequent annealing in air, as metal clusters were oxidized. PtZnO remained ferromagnetic, as the metal cluster structure was stable subjected to the air annealing.

Original language	English
Article number	042514
Journal	Applied Physics Letters
Volume	93
Issue number	4
DOIs	https://doi.org/10.1063/1.2966360
State	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.2966360

Cite this

@article{a10604aba940430896c64891c245b6d8,

title = "Inducing ferromagnetism in ZnO through doping of nonmagnetic elements",

abstract = "In this work, Zn, Al, Pt, Ag, and Au nonmagnetic metallic films were deposited on the surface of ZnO film, followed by high vacuum annealing at different temperatures. Results showed that (Zn,Al,Pt) ZnO films possessed room temperature ferromagnetism (RTF) after the vacuum annealing, while (Ag,Au) ZnO films did not. Our detailed structural investigations (transmission electron microscopy and x-ray photoelectron spectroscopy) revealed that this RTF was associated with the presence of metal clusters. The RTF disappeared in AlZnO after a subsequent annealing in air, as metal clusters were oxidized. PtZnO remained ferromagnetic, as the metal cluster structure was stable subjected to the air annealing.",

author = "Ma, \{Y. W.\} and Yi, \{J. B.\} and J. Ding and Van, \{L. H.\} and Zhang, \{H. T.\} and Ng, \{C. M.\}",

year = "2008",

doi = "10.1063/1.2966360",

language = "English",

volume = "93",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "4",

}

TY - JOUR

T1 - Inducing ferromagnetism in ZnO through doping of nonmagnetic elements

AU - Ma, Y. W.

AU - Yi, J. B.

AU - Ding, J.

AU - Van, L. H.

AU - Zhang, H. T.

AU - Ng, C. M.

PY - 2008

Y1 - 2008

N2 - In this work, Zn, Al, Pt, Ag, and Au nonmagnetic metallic films were deposited on the surface of ZnO film, followed by high vacuum annealing at different temperatures. Results showed that (Zn,Al,Pt) ZnO films possessed room temperature ferromagnetism (RTF) after the vacuum annealing, while (Ag,Au) ZnO films did not. Our detailed structural investigations (transmission electron microscopy and x-ray photoelectron spectroscopy) revealed that this RTF was associated with the presence of metal clusters. The RTF disappeared in AlZnO after a subsequent annealing in air, as metal clusters were oxidized. PtZnO remained ferromagnetic, as the metal cluster structure was stable subjected to the air annealing.

AB - In this work, Zn, Al, Pt, Ag, and Au nonmagnetic metallic films were deposited on the surface of ZnO film, followed by high vacuum annealing at different temperatures. Results showed that (Zn,Al,Pt) ZnO films possessed room temperature ferromagnetism (RTF) after the vacuum annealing, while (Ag,Au) ZnO films did not. Our detailed structural investigations (transmission electron microscopy and x-ray photoelectron spectroscopy) revealed that this RTF was associated with the presence of metal clusters. The RTF disappeared in AlZnO after a subsequent annealing in air, as metal clusters were oxidized. PtZnO remained ferromagnetic, as the metal cluster structure was stable subjected to the air annealing.

UR - https://www.scopus.com/pages/publications/49149088424

U2 - 10.1063/1.2966360

DO - 10.1063/1.2966360

M3 - Article

AN - SCOPUS:49149088424

SN - 0003-6951

VL - 93

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

M1 - 042514

ER -

Inducing ferromagnetism in ZnO through doping of nonmagnetic elements

Abstract

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this