Structure and magnetic properties of FePt nanograins embedded in amorphous carbon films

Yuhua Lee; J. H. Chen; M. S. Guo; G. M. Liu; C. S. Lue

doi:10.1016/j.jmmm.2004.04.004

Structure and magnetic properties of FePt nanograins embedded in amorphous carbon films

Yuhua Lee
, J. H. Chen
, M. S. Guo
, G. M. Liu
, C. S. Lue

Department of Physics

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

5 Citations (Scopus)

Abstract

Amorphous carbon films with nanograin inclusions of FePt alloy were manufactured by a DC magnetron co-sputtering technique. All films show superparamagnetism. After the post-deposition annealing, the blocking temperature and, thus, the coercive field are largely increased. The coercivity increases from ∼1.7kOe of the as-deposited films to ∼5.6kOe of the films annealed at 400°C for 1h. We discuss the effect of annealing on the structure and the increase of coercivity.

Original language	English
Pages (from-to)	15-18
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	282
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jmmm.2004.04.004
Publication status	Published - 2004 Nov
Event	International Symposium on Advanced Magnetic Technologies - Taipei, Taiwan Duration: 2003 Nov 13 → 2003 Nov 16

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2004.04.004

Cite this

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title = "Structure and magnetic properties of FePt nanograins embedded in amorphous carbon films",

abstract = "Amorphous carbon films with nanograin inclusions of FePt alloy were manufactured by a DC magnetron co-sputtering technique. All films show superparamagnetism. After the post-deposition annealing, the blocking temperature and, thus, the coercive field are largely increased. The coercivity increases from ∼1.7kOe of the as-deposited films to ∼5.6kOe of the films annealed at 400°C for 1h. We discuss the effect of annealing on the structure and the increase of coercivity.",

author = "Yuhua Lee and Chen, \{J. H.\} and Guo, \{M. S.\} and Liu, \{G. M.\} and Lue, \{C. S.\}",

note = "Funding Information: The authors acknowledge C.S. Lin for technical assistance in SQUID measurements. The authors thank for the financial support by the Republic of China's National Science Council under Grant No. NSC92-2112-M006-023.; International Symposium on Advanced Magnetic Technologies ; Conference date: 13-11-2003 Through 16-11-2003",

year = "2004",

month = nov,

doi = "10.1016/j.jmmm.2004.04.004",

language = "English",

volume = "282",

pages = "15--18",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier BV",

number = "1-3",

}

TY - JOUR

T1 - Structure and magnetic properties of FePt nanograins embedded in amorphous carbon films

AU - Lee, Yuhua

AU - Chen, J. H.

AU - Guo, M. S.

AU - Liu, G. M.

AU - Lue, C. S.

N1 - Funding Information: The authors acknowledge C.S. Lin for technical assistance in SQUID measurements. The authors thank for the financial support by the Republic of China's National Science Council under Grant No. NSC92-2112-M006-023.

PY - 2004/11

Y1 - 2004/11

N2 - Amorphous carbon films with nanograin inclusions of FePt alloy were manufactured by a DC magnetron co-sputtering technique. All films show superparamagnetism. After the post-deposition annealing, the blocking temperature and, thus, the coercive field are largely increased. The coercivity increases from ∼1.7kOe of the as-deposited films to ∼5.6kOe of the films annealed at 400°C for 1h. We discuss the effect of annealing on the structure and the increase of coercivity.

AB - Amorphous carbon films with nanograin inclusions of FePt alloy were manufactured by a DC magnetron co-sputtering technique. All films show superparamagnetism. After the post-deposition annealing, the blocking temperature and, thus, the coercive field are largely increased. The coercivity increases from ∼1.7kOe of the as-deposited films to ∼5.6kOe of the films annealed at 400°C for 1h. We discuss the effect of annealing on the structure and the increase of coercivity.

UR - https://www.scopus.com/pages/publications/5744248728

UR - https://www.scopus.com/pages/publications/5744248728#tab=citedBy

U2 - 10.1016/j.jmmm.2004.04.004

DO - 10.1016/j.jmmm.2004.04.004

M3 - Conference article

AN - SCOPUS:5744248728

SN - 0304-8853

VL - 282

SP - 15

EP - 18

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1-3

T2 - International Symposium on Advanced Magnetic Technologies

Y2 - 13 November 2003 through 16 November 2003

ER -

Structure and magnetic properties of FePt nanograins embedded in amorphous carbon films

Abstract

All Science Journal Classification (ASJC) codes

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