Angular rotation of magnetic hysteresis of ion-irradiated ferromagnetic thin films

G. S. Chang; T. A. Callcott; G. P. Zhang; G. T. Woods; S. H. Kim; S. W. Shin; K. Jeong; C. N. Whang; A. Moewes

doi:10.1063/1.1515370

Angular rotation of magnetic hysteresis of ion-irradiated ferromagnetic thin films

G. S. Chang, T. A. Callcott, G. P. Zhang, G. T. Woods, S. H. Kim, S. W. Shin, K. Jeong, C. N. Whang, A. Moewes

Department of Physics

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

11 Citations (Scopus)

Abstract

The magnetization direction of a cobalt-platinum film has been manipulated by magnetic-field-assisted ion-beam mixing. A uniaxial easy magnetization axis is induced along the oscillation direction of the incident beam of 80 keV Ar⁺ ions. The easy axis was then rotated by 60°, when the same ion irradiation process was carried out in the presence of an external magnetic field. Magnetic force microscopy measurements show that line shaped domain structures are created with their long axis along the induced magnetization directions. It is proposed that the creation of adjacent regions with orthogonal magnetization can play a crucial role in stabilizing the magnetostatic dipolar interaction between adjacent bits of magnetic data storage devices.

Original language	English
Pages (from-to)	3016-3018
Number of pages	3
Journal	Applied Physics Letters
Volume	81
Issue number	16
DOIs	https://doi.org/10.1063/1.1515370
Publication status	Published - 2002 Oct 14

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.1515370

Cite this

@article{f5693fe1aedb4ef6ba700ce8741f002d,

title = "Angular rotation of magnetic hysteresis of ion-irradiated ferromagnetic thin films",

abstract = "The magnetization direction of a cobalt-platinum film has been manipulated by magnetic-field-assisted ion-beam mixing. A uniaxial easy magnetization axis is induced along the oscillation direction of the incident beam of 80 keV Ar+ ions. The easy axis was then rotated by 60°, when the same ion irradiation process was carried out in the presence of an external magnetic field. Magnetic force microscopy measurements show that line shaped domain structures are created with their long axis along the induced magnetization directions. It is proposed that the creation of adjacent regions with orthogonal magnetization can play a crucial role in stabilizing the magnetostatic dipolar interaction between adjacent bits of magnetic data storage devices.",

author = "Chang, {G. S.} and Callcott, {T. A.} and Zhang, {G. P.} and Woods, {G. T.} and Kim, {S. H.} and Shin, {S. W.} and K. Jeong and Whang, {C. N.} and A. Moewes",

year = "2002",

month = oct,

day = "14",

doi = "10.1063/1.1515370",

language = "English",

volume = "81",

pages = "3016--3018",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "16",

}

TY - JOUR

T1 - Angular rotation of magnetic hysteresis of ion-irradiated ferromagnetic thin films

AU - Chang, G. S.

AU - Callcott, T. A.

AU - Zhang, G. P.

AU - Woods, G. T.

AU - Kim, S. H.

AU - Shin, S. W.

AU - Jeong, K.

AU - Whang, C. N.

AU - Moewes, A.

PY - 2002/10/14

Y1 - 2002/10/14

N2 - The magnetization direction of a cobalt-platinum film has been manipulated by magnetic-field-assisted ion-beam mixing. A uniaxial easy magnetization axis is induced along the oscillation direction of the incident beam of 80 keV Ar+ ions. The easy axis was then rotated by 60°, when the same ion irradiation process was carried out in the presence of an external magnetic field. Magnetic force microscopy measurements show that line shaped domain structures are created with their long axis along the induced magnetization directions. It is proposed that the creation of adjacent regions with orthogonal magnetization can play a crucial role in stabilizing the magnetostatic dipolar interaction between adjacent bits of magnetic data storage devices.

AB - The magnetization direction of a cobalt-platinum film has been manipulated by magnetic-field-assisted ion-beam mixing. A uniaxial easy magnetization axis is induced along the oscillation direction of the incident beam of 80 keV Ar+ ions. The easy axis was then rotated by 60°, when the same ion irradiation process was carried out in the presence of an external magnetic field. Magnetic force microscopy measurements show that line shaped domain structures are created with their long axis along the induced magnetization directions. It is proposed that the creation of adjacent regions with orthogonal magnetization can play a crucial role in stabilizing the magnetostatic dipolar interaction between adjacent bits of magnetic data storage devices.

UR - http://www.scopus.com/inward/record.url?scp=79955990959&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79955990959&partnerID=8YFLogxK

U2 - 10.1063/1.1515370

DO - 10.1063/1.1515370

M3 - Article

AN - SCOPUS:79955990959

SN - 0003-6951

VL - 81

SP - 3016

EP - 3018

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

ER -

Angular rotation of magnetic hysteresis of ion-irradiated ferromagnetic thin films

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this