Surface topology and magnetic properties of FePt alloyed thin films

Kyung Hwan Na; Jong Gab Na; Hi Jung Kim; Pyung Woo Jang; Sung Rae Lee

doi:10.1109/20.950824

Surface topology and magnetic properties of FePt alloyed thin films

Kyung Hwan Na, Jong Gab Na, Hi Jung Kim, Pyung Woo Jang, Sung Rae Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

Dependency of Ar pressure on the surface topology and magnetic properties of as-deposited and air-annealed 120 nm thick FePt thin films were investigated. The higher the Ar pressure was, the rougher the surface of as-deposited films became. After annealing in the air, the surface became much rougher which was due to formation of Fe oxide on the surface. The oxidation was much accelerated in the films with rougher surface. This accelerated oxidation resulted in a high order-disorder transformation rate and higher coercivity.

Original language	English
Pages (from-to)	1302-1305
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 I
DOIs	https://doi.org/10.1109/20.950824
Publication status	Published - 2001 Jul
Event	8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States Duration: 2001 Jan 7 → 2001 Jan 11

Keywords

Air-annealing
FePt film
L1 structure
Order-disorder transformation
Surface topology

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/20.950824

Cite this

@article{96f9d57afb0046c4b22ea7dcec350cd9,

title = "Surface topology and magnetic properties of FePt alloyed thin films",

abstract = "Dependency of Ar pressure on the surface topology and magnetic properties of as-deposited and air-annealed 120 nm thick FePt thin films were investigated. The higher the Ar pressure was, the rougher the surface of as-deposited films became. After annealing in the air, the surface became much rougher which was due to formation of Fe oxide on the surface. The oxidation was much accelerated in the films with rougher surface. This accelerated oxidation resulted in a high order-disorder transformation rate and higher coercivity.",

keywords = "Air-annealing, FePt film, L1 structure, Order-disorder transformation, Surface topology",

author = "Na, {Kyung Hwan} and Na, {Jong Gab} and Kim, {Hi Jung} and Jang, {Pyung Woo} and Lee, {Sung Rae}",

year = "2001",

month = jul,

doi = "10.1109/20.950824",

language = "English",

volume = "37",

pages = "1302--1305",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4 I",

note = "8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) ; Conference date: 07-01-2001 Through 11-01-2001",

}

TY - JOUR

T1 - Surface topology and magnetic properties of FePt alloyed thin films

AU - Na, Kyung Hwan

AU - Na, Jong Gab

AU - Kim, Hi Jung

AU - Jang, Pyung Woo

AU - Lee, Sung Rae

PY - 2001/7

Y1 - 2001/7

N2 - Dependency of Ar pressure on the surface topology and magnetic properties of as-deposited and air-annealed 120 nm thick FePt thin films were investigated. The higher the Ar pressure was, the rougher the surface of as-deposited films became. After annealing in the air, the surface became much rougher which was due to formation of Fe oxide on the surface. The oxidation was much accelerated in the films with rougher surface. This accelerated oxidation resulted in a high order-disorder transformation rate and higher coercivity.

AB - Dependency of Ar pressure on the surface topology and magnetic properties of as-deposited and air-annealed 120 nm thick FePt thin films were investigated. The higher the Ar pressure was, the rougher the surface of as-deposited films became. After annealing in the air, the surface became much rougher which was due to formation of Fe oxide on the surface. The oxidation was much accelerated in the films with rougher surface. This accelerated oxidation resulted in a high order-disorder transformation rate and higher coercivity.

KW - Air-annealing

KW - FePt film

KW - L1 structure

KW - Order-disorder transformation

KW - Surface topology

UR - http://www.scopus.com/inward/record.url?scp=0035386837&partnerID=8YFLogxK

U2 - 10.1109/20.950824

DO - 10.1109/20.950824

M3 - Conference article

AN - SCOPUS:0035386837

SN - 0018-9464

VL - 37

SP - 1302

EP - 1305

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4 I

T2 - 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag)

Y2 - 7 January 2001 through 11 January 2001

ER -

Surface topology and magnetic properties of FePt alloyed thin films

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this