High coercivity and small grains of Fe57Pt43) 100-x Cux ternary thin films

K. M. Park; K. H. Na; J. G. Na; P. W. Jang; H. J. Kim; S. R. Lee

doi:10.1109/TMAG.2002.802788

High coercivity and small grains of Fe₅₇Pt₄₃) _100-x Cu_x ternary thin films

K. M. Park, K. H. Na, J. G. Na, P. W. Jang, H. J. Kim, S. R. Lee

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

5 Citations (Scopus)

Abstract

(Fe₅₇ Pt₄₃)_100-x Cu_x ternary films with x = 0-4 at.% were prepared on Corning 7059 glass by dc magnetron sputtering in order to investigate the effect of Cu addition on the transformation rate of FePt alloy films. The structural and chemical analysis revealed that Cu was very effective in promoting the transformation to the L1₀ ordered phase and to suppress the grain growth of the L1₀ ordered phase when films were annealed at 400 °C-700 °C in vacuum. During the annealing, Cu atoms diffused onto the film surface, probably yielding many defects remain inside the film. This Cu diffusion may be the reason for the rapid transformation.

Original language	English
Pages (from-to)	1961-1963
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	38
Issue number	5 I
DOIs	https://doi.org/10.1109/TMAG.2002.802788
Publication status	Published - 2002 Sept
Event	2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands Duration: 2002 Apr 28 → 2002 May 2

Keywords

Diffusion
FePt film
L1 structure
Order-disorder transformation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2002.802788

Cite this

@article{b7f879fe2c0c417ab32d143f6f873a7a,

title = "High coercivity and small grains of Fe57Pt43) 100-x Cux ternary thin films",

abstract = "(Fe57 Pt43)100-x Cux ternary films with x = 0-4 at.% were prepared on Corning 7059 glass by dc magnetron sputtering in order to investigate the effect of Cu addition on the transformation rate of FePt alloy films. The structural and chemical analysis revealed that Cu was very effective in promoting the transformation to the L10 ordered phase and to suppress the grain growth of the L10 ordered phase when films were annealed at 400 °C-700 °C in vacuum. During the annealing, Cu atoms diffused onto the film surface, probably yielding many defects remain inside the film. This Cu diffusion may be the reason for the rapid transformation.",

keywords = "Diffusion, FePt film, L1 structure, Order-disorder transformation",

author = "Park, {K. M.} and Na, {K. H.} and Na, {J. G.} and Jang, {P. W.} and Kim, {H. J.} and Lee, {S. R.}",

year = "2002",

month = sep,

doi = "10.1109/TMAG.2002.802788",

language = "English",

volume = "38",

pages = "1961--1963",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

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

number = "5 I",

note = "2002 International Magnetics Conference (Intermag 2002) ; Conference date: 28-04-2002 Through 02-05-2002",

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TY - JOUR

T1 - High coercivity and small grains of Fe57Pt43) 100-x Cux ternary thin films

AU - Park, K. M.

AU - Na, K. H.

AU - Na, J. G.

AU - Jang, P. W.

AU - Kim, H. J.

AU - Lee, S. R.

PY - 2002/9

Y1 - 2002/9

N2 - (Fe57 Pt43)100-x Cux ternary films with x = 0-4 at.% were prepared on Corning 7059 glass by dc magnetron sputtering in order to investigate the effect of Cu addition on the transformation rate of FePt alloy films. The structural and chemical analysis revealed that Cu was very effective in promoting the transformation to the L10 ordered phase and to suppress the grain growth of the L10 ordered phase when films were annealed at 400 °C-700 °C in vacuum. During the annealing, Cu atoms diffused onto the film surface, probably yielding many defects remain inside the film. This Cu diffusion may be the reason for the rapid transformation.

AB - (Fe57 Pt43)100-x Cux ternary films with x = 0-4 at.% were prepared on Corning 7059 glass by dc magnetron sputtering in order to investigate the effect of Cu addition on the transformation rate of FePt alloy films. The structural and chemical analysis revealed that Cu was very effective in promoting the transformation to the L10 ordered phase and to suppress the grain growth of the L10 ordered phase when films were annealed at 400 °C-700 °C in vacuum. During the annealing, Cu atoms diffused onto the film surface, probably yielding many defects remain inside the film. This Cu diffusion may be the reason for the rapid transformation.

KW - Diffusion

KW - FePt film

KW - L1 structure

KW - Order-disorder transformation

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DO - 10.1109/TMAG.2002.802788

M3 - Conference article

AN - SCOPUS:0036761638

SN - 0018-9464

VL - 38

SP - 1961

EP - 1963

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5 I

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