Near-surface magnetic properties of CoFeAlO thin films

Nguyen Duy Ha; Nguyen Trung Thanh; Hyun Bin Kim; Cheolgi Kim; Chong Oh Kim; E. Gan'Shina; Manh Huong Phan

doi:10.1016/j.ssc.2005.06.002

Near-surface magnetic properties of CoFeAlO thin films

Nguyen Duy Ha, Nguyen Trung Thanh, Hyun Bin Kim, Cheolgi Kim, Chong Oh Kim, E. Gan'Shina, Manh Huong Phan

Department of Physics and Chemistry

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

5 Scopus citations

Abstract

We present here, the results of a thorough study of the surface and magnetic properties of as-deposited and annealed Co-Fe-Al-O thin films using the magneto-optical Kerr effect technique. An increase in magnetic anisotropy was found in the near-surface region of the film, which is ascribed to the microstructural change occurring in this region. It is found that the partial pressure of oxygen caused considerable changes in the transverse Kerr effect spectra and hence the magnetic properties of the thin films. The step-like magnetization behavior was observed at a light wavelength of 310 nm while it disappeared for higher wavelengths of light. The step-like magnetization phenomenon is due to the magnetic wall displacement process of each fracturized domain in the surface region.

Original language	English
Pages (from-to)	721-724
Number of pages	4
Journal	Solid State Communications
Volume	135
Issue number	11-12
DOIs	https://doi.org/10.1016/j.ssc.2005.06.002
State	Published - Sep 2005

Bibliographical note

Funding Information:
This work was supported by the Korean Science and Engineering Foundation through the Research Center for Advanced Magnetic Materials at Chungnam National University and BY BK 21 program.

Keywords

A. Co-Fe-Al-O thin films
D. Kerr effect
D. Magneto-optics
D. Surface anisotropy

Access to Document

10.1016/j.ssc.2005.06.002

Cite this

@article{43d467882c414ef6ae59bd4d97e14578,

title = "Near-surface magnetic properties of CoFeAlO thin films",

abstract = "We present here, the results of a thorough study of the surface and magnetic properties of as-deposited and annealed Co-Fe-Al-O thin films using the magneto-optical Kerr effect technique. An increase in magnetic anisotropy was found in the near-surface region of the film, which is ascribed to the microstructural change occurring in this region. It is found that the partial pressure of oxygen caused considerable changes in the transverse Kerr effect spectra and hence the magnetic properties of the thin films. The step-like magnetization behavior was observed at a light wavelength of 310 nm while it disappeared for higher wavelengths of light. The step-like magnetization phenomenon is due to the magnetic wall displacement process of each fracturized domain in the surface region.",

keywords = "A. Co-Fe-Al-O thin films, D. Kerr effect, D. Magneto-optics, D. Surface anisotropy",

author = "Ha, {Nguyen Duy} and Thanh, {Nguyen Trung} and Kim, {Hyun Bin} and Cheolgi Kim and Kim, {Chong Oh} and E. Gan'Shina and Phan, {Manh Huong}",

note = "Funding Information: This work was supported by the Korean Science and Engineering Foundation through the Research Center for Advanced Magnetic Materials at Chungnam National University and BY BK 21 program.",

year = "2005",

month = sep,

doi = "10.1016/j.ssc.2005.06.002",

language = "English",

volume = "135",

pages = "721--724",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

number = "11-12",

}

TY - JOUR

T1 - Near-surface magnetic properties of CoFeAlO thin films

AU - Ha, Nguyen Duy

AU - Thanh, Nguyen Trung

AU - Kim, Hyun Bin

AU - Kim, Cheolgi

AU - Kim, Chong Oh

AU - Gan'Shina, E.

AU - Phan, Manh Huong

N1 - Funding Information: This work was supported by the Korean Science and Engineering Foundation through the Research Center for Advanced Magnetic Materials at Chungnam National University and BY BK 21 program.

PY - 2005/9

Y1 - 2005/9

N2 - We present here, the results of a thorough study of the surface and magnetic properties of as-deposited and annealed Co-Fe-Al-O thin films using the magneto-optical Kerr effect technique. An increase in magnetic anisotropy was found in the near-surface region of the film, which is ascribed to the microstructural change occurring in this region. It is found that the partial pressure of oxygen caused considerable changes in the transverse Kerr effect spectra and hence the magnetic properties of the thin films. The step-like magnetization behavior was observed at a light wavelength of 310 nm while it disappeared for higher wavelengths of light. The step-like magnetization phenomenon is due to the magnetic wall displacement process of each fracturized domain in the surface region.

AB - We present here, the results of a thorough study of the surface and magnetic properties of as-deposited and annealed Co-Fe-Al-O thin films using the magneto-optical Kerr effect technique. An increase in magnetic anisotropy was found in the near-surface region of the film, which is ascribed to the microstructural change occurring in this region. It is found that the partial pressure of oxygen caused considerable changes in the transverse Kerr effect spectra and hence the magnetic properties of the thin films. The step-like magnetization behavior was observed at a light wavelength of 310 nm while it disappeared for higher wavelengths of light. The step-like magnetization phenomenon is due to the magnetic wall displacement process of each fracturized domain in the surface region.

KW - A. Co-Fe-Al-O thin films

KW - D. Kerr effect

KW - D. Magneto-optics

KW - D. Surface anisotropy

UR - http://www.scopus.com/inward/record.url?scp=23344435795&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2005.06.002

DO - 10.1016/j.ssc.2005.06.002

M3 - Article

AN - SCOPUS:23344435795

SN - 0038-1098

VL - 135

SP - 721

EP - 724

JO - Solid State Communications

JF - Solid State Communications

IS - 11-12

ER -

Near-surface magnetic properties of CoFeAlO thin films

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this