Magnetoresistance in Cu-Co granular films and Co/Cu/Co sandwiches

H. Wang; Q. Y. Jin; C. Chu; Y. H. Shen; H. F. Chen; F. M. Li; Q. S. Bie; M. Lu; H. R. Zhai

doi:10.1117/12.300724

Magnetoresistance in Cu-Co granular films and Co/Cu/Co sandwiches

H. Wang^*, Q. Y. Jin, C. Chu, Y. H. Shen, H. F. Chen, F. M. Li, Q. S. Bie, M. Lu, H. R. Zhai

^*Corresponding author for this work

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

1 Scopus citations

Abstract

Cu_1-xCo_x granular films with x=19, 27,43 and 45 achieved by sputtering with different argon gas pressure are studied by the magnetic and magnetoresistance measurement. With the increase of the sputter argon gas pressure P, the remanence and coercive force increases, but the MR ratio has a maximum value around P=1.5 Pa, confirming that a proper size of Co grains and a suitable concentration are required for the large MR. And for Co/Cu/Co sandwiches, we found there was an MR ration oscillation as Cu layer thickness was varied.

Original language	English
Pages (from-to)	440-443
Number of pages	4
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3175
DOIs	https://doi.org/10.1117/12.300724
State	Published - 1998
Externally published	Yes
Event	3rd International Conference on Thin Film Physics and Applications - Shanghai, China Duration: 15 Apr 1997 → 15 Apr 1997

Keywords

Coercive force
Giant magnetoresistance
Remanence

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10.1117/12.300724

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@article{3fee5605f69440489d0d21dd593679c0,

title = "Magnetoresistance in Cu-Co granular films and Co/Cu/Co sandwiches",

abstract = "Cu1-xCox granular films with x=19, 27,43 and 45 achieved by sputtering with different argon gas pressure are studied by the magnetic and magnetoresistance measurement. With the increase of the sputter argon gas pressure P, the remanence and coercive force increases, but the MR ratio has a maximum value around P=1.5 Pa, confirming that a proper size of Co grains and a suitable concentration are required for the large MR. And for Co/Cu/Co sandwiches, we found there was an MR ration oscillation as Cu layer thickness was varied.",

keywords = "Coercive force, Giant magnetoresistance, Remanence",

author = "H. Wang and Jin, \{Q. Y.\} and C. Chu and Shen, \{Y. H.\} and Chen, \{H. F.\} and Li, \{F. M.\} and Bie, \{Q. S.\} and M. Lu and Zhai, \{H. R.\}",

year = "1998",

doi = "10.1117/12.300724",

language = "英语",

volume = "3175",

pages = "440--443",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "3rd International Conference on Thin Film Physics and Applications ; Conference date: 15-04-1997 Through 15-04-1997",

}

TY - JOUR

T1 - Magnetoresistance in Cu-Co granular films and Co/Cu/Co sandwiches

AU - Wang, H.

AU - Jin, Q. Y.

AU - Chu, C.

AU - Shen, Y. H.

AU - Chen, H. F.

AU - Li, F. M.

AU - Bie, Q. S.

AU - Lu, M.

AU - Zhai, H. R.

PY - 1998

Y1 - 1998

N2 - Cu1-xCox granular films with x=19, 27,43 and 45 achieved by sputtering with different argon gas pressure are studied by the magnetic and magnetoresistance measurement. With the increase of the sputter argon gas pressure P, the remanence and coercive force increases, but the MR ratio has a maximum value around P=1.5 Pa, confirming that a proper size of Co grains and a suitable concentration are required for the large MR. And for Co/Cu/Co sandwiches, we found there was an MR ration oscillation as Cu layer thickness was varied.

AB - Cu1-xCox granular films with x=19, 27,43 and 45 achieved by sputtering with different argon gas pressure are studied by the magnetic and magnetoresistance measurement. With the increase of the sputter argon gas pressure P, the remanence and coercive force increases, but the MR ratio has a maximum value around P=1.5 Pa, confirming that a proper size of Co grains and a suitable concentration are required for the large MR. And for Co/Cu/Co sandwiches, we found there was an MR ration oscillation as Cu layer thickness was varied.

KW - Coercive force

KW - Giant magnetoresistance

KW - Remanence

UR - https://www.scopus.com/pages/publications/57649099544

U2 - 10.1117/12.300724

DO - 10.1117/12.300724

M3 - 会议文章

AN - SCOPUS:57649099544

SN - 0277-786X

VL - 3175

SP - 440

EP - 443

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - 3rd International Conference on Thin Film Physics and Applications

Y2 - 15 April 1997 through 15 April 1997

ER -

Magnetoresistance in Cu-Co granular films and Co/Cu/Co sandwiches

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Keywords

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