Exchange bias effects of NiFe/NiO bilayers through ion-beam bombardment on the NiO surface

Guijun Li; Chi Wah Leung; Chin Shueh; Hsun Feng Hsu; Hsuan Rong Huang; Ko Wei Lin; Pui To Lai; Philip W.T. Pong

doi:10.1016/j.surfcoat.2012.05.035

Exchange bias effects of NiFe/NiO bilayers through ion-beam bombardment on the NiO surface

Guijun Li, Chi Wah Leung, Chin Shueh, Hsun Feng Hsu, Hsuan Rong Huang, Ko Wei Lin, Pui To Lai, Philip W.T. Pong

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

The influence of ion-beam bombardment of the NiO surface on the exchange bias behavior of NiFe/NiO bilayers was systemically investigated with different bombardment energies and durations. The results show that by varying the bombardment energies, different crystallographic orientations are created which modifies the NiO spin structures. This results in the changes in the coupling type in NiO when it is in contact with the NiFe layer. The NiFe/NiO bilayers exhibited either enhanced or decreased exchange bias filed, depending on the uncompensated moments or misaligned NiO spin created by ion-beam bombardment. The variations in coercivities of NiFe/NiO bilayers imply that the NiO anisotropy could be tuned by ion-beam bombardment.

Original language	English
Journal	Surface and Coatings Technology
Volume	228
Issue number	SUPPL.1
DOIs	https://doi.org/10.1016/j.surfcoat.2012.05.035
Publication status	Published - 15 Aug 2013

Keywords

Exchange bias
Ion-beam bombardment
Magnetic thin films

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

More information

10.1016/j.surfcoat.2012.05.035

Cite this

@article{7cae22687d274cbb83bed22fb801ac48,

title = "Exchange bias effects of NiFe/NiO bilayers through ion-beam bombardment on the NiO surface",

abstract = "The influence of ion-beam bombardment of the NiO surface on the exchange bias behavior of NiFe/NiO bilayers was systemically investigated with different bombardment energies and durations. The results show that by varying the bombardment energies, different crystallographic orientations are created which modifies the NiO spin structures. This results in the changes in the coupling type in NiO when it is in contact with the NiFe layer. The NiFe/NiO bilayers exhibited either enhanced or decreased exchange bias filed, depending on the uncompensated moments or misaligned NiO spin created by ion-beam bombardment. The variations in coercivities of NiFe/NiO bilayers imply that the NiO anisotropy could be tuned by ion-beam bombardment.",

keywords = "Exchange bias, Ion-beam bombardment, Magnetic thin films",

author = "Guijun Li and Leung, {Chi Wah} and Chin Shueh and Hsu, {Hsun Feng} and Huang, {Hsuan Rong} and Lin, {Ko Wei} and Lai, {Pui To} and Pong, {Philip W.T.}",

year = "2013",

month = aug,

day = "15",

doi = "10.1016/j.surfcoat.2012.05.035",

language = "English",

volume = "228",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier B.V.",

number = "SUPPL.1",

}

TY - JOUR

T1 - Exchange bias effects of NiFe/NiO bilayers through ion-beam bombardment on the NiO surface

AU - Li, Guijun

AU - Leung, Chi Wah

AU - Shueh, Chin

AU - Hsu, Hsun Feng

AU - Huang, Hsuan Rong

AU - Lin, Ko Wei

AU - Lai, Pui To

AU - Pong, Philip W.T.

PY - 2013/8/15

Y1 - 2013/8/15

N2 - The influence of ion-beam bombardment of the NiO surface on the exchange bias behavior of NiFe/NiO bilayers was systemically investigated with different bombardment energies and durations. The results show that by varying the bombardment energies, different crystallographic orientations are created which modifies the NiO spin structures. This results in the changes in the coupling type in NiO when it is in contact with the NiFe layer. The NiFe/NiO bilayers exhibited either enhanced or decreased exchange bias filed, depending on the uncompensated moments or misaligned NiO spin created by ion-beam bombardment. The variations in coercivities of NiFe/NiO bilayers imply that the NiO anisotropy could be tuned by ion-beam bombardment.

AB - The influence of ion-beam bombardment of the NiO surface on the exchange bias behavior of NiFe/NiO bilayers was systemically investigated with different bombardment energies and durations. The results show that by varying the bombardment energies, different crystallographic orientations are created which modifies the NiO spin structures. This results in the changes in the coupling type in NiO when it is in contact with the NiFe layer. The NiFe/NiO bilayers exhibited either enhanced or decreased exchange bias filed, depending on the uncompensated moments or misaligned NiO spin created by ion-beam bombardment. The variations in coercivities of NiFe/NiO bilayers imply that the NiO anisotropy could be tuned by ion-beam bombardment.

KW - Exchange bias

KW - Ion-beam bombardment

KW - Magnetic thin films

UR - http://www.scopus.com/inward/record.url?scp=84879793158&partnerID=8YFLogxK

U2 - 10.1016/j.surfcoat.2012.05.035

DO - 10.1016/j.surfcoat.2012.05.035

M3 - Journal article

SN - 0257-8972

VL - 228

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - SUPPL.1

ER -

Exchange bias effects of NiFe/NiO bilayers through ion-beam bombardment on the NiO surface

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this