Magnetoresistance of FePt nanograins embedded in carbon matrix

Y. H. Lee; M. S. Guo; C. S. Wur; P. C. Lin; W. H. Li

doi:10.1016/j.jmmm.2004.09.049

Magnetoresistance of FePt nanograins embedded in carbon matrix

Y. H. Lee, M. S. Guo, C. S. Wur, P. C. Lin, W. H. Li

Department of Physics

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

5 Scopus citations

Abstract

We studied the magneotransport properties of granular films of FePt/C which were fabricated by using DC magnetron co-sputtering technique. Films were made at the sputtering pressures of 30 and 15 mTorr, and with sputtering powers of 80 and 60 W for each pressure. A large magnetoresistance of 6% at 2 K was observed only for the film made at 80 W and 15 mTorr. Other magnetoresistance values were all below 1%. We also discussed the influence of carbon matrix on the giant magnetoresistance.

Original language	English
Pages (from-to)	113-118
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	286
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jmmm.2004.09.049
State	Published - Feb 2005

Keywords

Carbon films
FePt
GMR
Granular films
Superparamagnetism

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10.1016/j.jmmm.2004.09.049

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title = "Magnetoresistance of FePt nanograins embedded in carbon matrix",

abstract = "We studied the magneotransport properties of granular films of FePt/C which were fabricated by using DC magnetron co-sputtering technique. Films were made at the sputtering pressures of 30 and 15 mTorr, and with sputtering powers of 80 and 60 W for each pressure. A large magnetoresistance of 6% at 2 K was observed only for the film made at 80 W and 15 mTorr. Other magnetoresistance values were all below 1%. We also discussed the influence of carbon matrix on the giant magnetoresistance.",

keywords = "Carbon films, FePt, GMR, Granular films, Superparamagnetism",

author = "Lee, {Y. H.} and Guo, {M. S.} and Wur, {C. S.} and Lin, {P. C.} and Li, {W. H.}",

note = "Funding Information: The authors thank the financial support by the Republic of China's National Science Council under Grant no. 93-2112-M006-014.",

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TY - JOUR

T1 - Magnetoresistance of FePt nanograins embedded in carbon matrix

AU - Lee, Y. H.

AU - Guo, M. S.

AU - Wur, C. S.

AU - Lin, P. C.

AU - Li, W. H.

N1 - Funding Information: The authors thank the financial support by the Republic of China's National Science Council under Grant no. 93-2112-M006-014.

PY - 2005/2

Y1 - 2005/2

N2 - We studied the magneotransport properties of granular films of FePt/C which were fabricated by using DC magnetron co-sputtering technique. Films were made at the sputtering pressures of 30 and 15 mTorr, and with sputtering powers of 80 and 60 W for each pressure. A large magnetoresistance of 6% at 2 K was observed only for the film made at 80 W and 15 mTorr. Other magnetoresistance values were all below 1%. We also discussed the influence of carbon matrix on the giant magnetoresistance.

AB - We studied the magneotransport properties of granular films of FePt/C which were fabricated by using DC magnetron co-sputtering technique. Films were made at the sputtering pressures of 30 and 15 mTorr, and with sputtering powers of 80 and 60 W for each pressure. A large magnetoresistance of 6% at 2 K was observed only for the film made at 80 W and 15 mTorr. Other magnetoresistance values were all below 1%. We also discussed the influence of carbon matrix on the giant magnetoresistance.

KW - Carbon films

KW - FePt

KW - GMR

KW - Granular films

KW - Superparamagnetism

UR - http://www.scopus.com/inward/record.url?scp=11444257491&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2004.09.049

DO - 10.1016/j.jmmm.2004.09.049

M3 - 期刊論文

AN - SCOPUS:11444257491

VL - 286

SP - 113

EP - 118

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - SPEC. ISS.

ER -

Magnetoresistance of FePt nanograins embedded in carbon matrix

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Keywords

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