Magneto-transport properties of sandwich films of permalloy/Cu/Co

C. K. Lo; C. H. Ho; I. Klik; Y. D. Yao; S. F. Lee; H. H. Huang; Y. C. Chen; C. Y. Wu; D. Y. Chiang; C. A. Chang; M. T. Lin; D. R. Huang

Magneto-transport properties of sandwich films of permalloy/Cu/Co

C. K. Lo^*, C. H. Ho, I. Klik, Y. D. Yao, S. F. Lee, H. H. Huang, Y. C. Chen, C. Y. Wu, D. Y. Chiang, C. A. Chang, M. T. Lin, D. R. Huang

^*Corresponding author for this work

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

Abstract

The magnetic behaviour of sputtered Py_5nm/Cu_t/Co_5nm films on glass, Si(100), and Si(111) was studied by measurements of the transverse, longitudinal, polar magneto-resistance, and the magneto-optical Kerr effect (MOKE). The sample can be rotated about its surface normal to obtain angular dependent information during the MOKE measurement. All specimens have non-vanishing normal component of magnetization as revealed by MR with field applied normal to the film and confirmed by polar MOKE. Spin valve MR with very small coercivity is observed as t is increased. The minor R-H curve shows two states at zero magnetic field, which is desirable for MRAM application. An increase in the periodicity number increases the MR ratio, but also, significantly, the coercivity.

Original language	English
Pages (from-to)	67-72
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	517
Publication status	Published - 1998
Externally published	Yes
Event	Proceedings of the 1998 MRS Spring Symposium - San Francisco, CA, USA Duration: 1998 Apr 13 → 1998 Apr 15

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

@article{b985ff20236341c3ae27c6ea37f9462f,

title = "Magneto-transport properties of sandwich films of permalloy/Cu/Co",

abstract = "The magnetic behaviour of sputtered Py5nm/Cut/Co5nm films on glass, Si(100), and Si(111) was studied by measurements of the transverse, longitudinal, polar magneto-resistance, and the magneto-optical Kerr effect (MOKE). The sample can be rotated about its surface normal to obtain angular dependent information during the MOKE measurement. All specimens have non-vanishing normal component of magnetization as revealed by MR with field applied normal to the film and confirmed by polar MOKE. Spin valve MR with very small coercivity is observed as t is increased. The minor R-H curve shows two states at zero magnetic field, which is desirable for MRAM application. An increase in the periodicity number increases the MR ratio, but also, significantly, the coercivity.",

author = "Lo, {C. K.} and Ho, {C. H.} and I. Klik and Yao, {Y. D.} and Lee, {S. F.} and Huang, {H. H.} and Chen, {Y. C.} and Wu, {C. Y.} and Chiang, {D. Y.} and Chang, {C. A.} and Lin, {M. T.} and Huang, {D. R.}",

year = "1998",

language = "English",

volume = "517",

pages = "67--72",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Proceedings of the 1998 MRS Spring Symposium ; Conference date: 13-04-1998 Through 15-04-1998",

}

TY - JOUR

T1 - Magneto-transport properties of sandwich films of permalloy/Cu/Co

AU - Lo, C. K.

AU - Ho, C. H.

AU - Klik, I.

AU - Yao, Y. D.

AU - Lee, S. F.

AU - Huang, H. H.

AU - Chen, Y. C.

AU - Wu, C. Y.

AU - Chiang, D. Y.

AU - Chang, C. A.

AU - Lin, M. T.

AU - Huang, D. R.

PY - 1998

Y1 - 1998

N2 - The magnetic behaviour of sputtered Py5nm/Cut/Co5nm films on glass, Si(100), and Si(111) was studied by measurements of the transverse, longitudinal, polar magneto-resistance, and the magneto-optical Kerr effect (MOKE). The sample can be rotated about its surface normal to obtain angular dependent information during the MOKE measurement. All specimens have non-vanishing normal component of magnetization as revealed by MR with field applied normal to the film and confirmed by polar MOKE. Spin valve MR with very small coercivity is observed as t is increased. The minor R-H curve shows two states at zero magnetic field, which is desirable for MRAM application. An increase in the periodicity number increases the MR ratio, but also, significantly, the coercivity.

AB - The magnetic behaviour of sputtered Py5nm/Cut/Co5nm films on glass, Si(100), and Si(111) was studied by measurements of the transverse, longitudinal, polar magneto-resistance, and the magneto-optical Kerr effect (MOKE). The sample can be rotated about its surface normal to obtain angular dependent information during the MOKE measurement. All specimens have non-vanishing normal component of magnetization as revealed by MR with field applied normal to the film and confirmed by polar MOKE. Spin valve MR with very small coercivity is observed as t is increased. The minor R-H curve shows two states at zero magnetic field, which is desirable for MRAM application. An increase in the periodicity number increases the MR ratio, but also, significantly, the coercivity.

UR - http://www.scopus.com/inward/record.url?scp=0032305016&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032305016&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0032305016

SN - 0272-9172

VL - 517

SP - 67

EP - 72

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Proceedings of the 1998 MRS Spring Symposium

Y2 - 13 April 1998 through 15 April 1998

ER -

Magneto-transport properties of sandwich films of permalloy/Cu/Co

Abstract

ASJC Scopus subject areas

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