Giant Magnetoresistance in Obliquely Co-Evaporated Co-Ag Films

J.C. Lodder, P. de Haan, H. van Kranenburg

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Abstract

Magnetoresistance (MR) measurements at room temperature have been performed on obliquely (co-) evaporated Ag-Co films deposited at room- and elevated-temperatures. The ‘giant’ magnetoresistance ratio (max. 13% for a composition of about Co35Ag65) over a wide range of compositions has been measured. The films are polycrystalline and grown in a columnar morphology. The columnar diameter depends on the thickness and is < 20 nm at 400 nm thickness. From XRD, NMR and saturation magnetization (Ms) vs. at% Ag, one can conclude that the films consist of Co-Co and Ag-Ag clusters. The coercivity depends on the thickness of the films (100–700 nm) and varies from 5 to 15 kA/m.
Original languageUndefined
Pages (from-to)219-228
Number of pages10
JournalJournal of magnetism and magnetic materials
Volume128
Issue number128
DOIs
Publication statusPublished - 1993

Keywords

  • METIS-112369
  • EWI-5557
  • IR-15490
  • SMI-NE: From 2006 in EWI-NE
  • SMI-SPINTRONICS

Cite this

Lodder, J.C. ; de Haan, P. ; van Kranenburg, H. / Giant Magnetoresistance in Obliquely Co-Evaporated Co-Ag Films. In: Journal of magnetism and magnetic materials. 1993 ; Vol. 128, No. 128. pp. 219-228.
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abstract = "Magnetoresistance (MR) measurements at room temperature have been performed on obliquely (co-) evaporated Ag-Co films deposited at room- and elevated-temperatures. The ‘giant’ magnetoresistance ratio (max. 13{\%} for a composition of about Co35Ag65) over a wide range of compositions has been measured. The films are polycrystalline and grown in a columnar morphology. The columnar diameter depends on the thickness and is < 20 nm at 400 nm thickness. From XRD, NMR and saturation magnetization (Ms) vs. at{\%} Ag, one can conclude that the films consist of Co-Co and Ag-Ag clusters. The coercivity depends on the thickness of the films (100–700 nm) and varies from 5 to 15 kA/m.",
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Giant Magnetoresistance in Obliquely Co-Evaporated Co-Ag Films. / Lodder, J.C.; de Haan, P.; van Kranenburg, H.

In: Journal of magnetism and magnetic materials, Vol. 128, No. 128, 1993, p. 219-228.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Giant Magnetoresistance in Obliquely Co-Evaporated Co-Ag Films

AU - Lodder, J.C.

AU - de Haan, P.

AU - van Kranenburg, H.

N1 - Imported from SMI Reference manager

PY - 1993

Y1 - 1993

N2 - Magnetoresistance (MR) measurements at room temperature have been performed on obliquely (co-) evaporated Ag-Co films deposited at room- and elevated-temperatures. The ‘giant’ magnetoresistance ratio (max. 13% for a composition of about Co35Ag65) over a wide range of compositions has been measured. The films are polycrystalline and grown in a columnar morphology. The columnar diameter depends on the thickness and is < 20 nm at 400 nm thickness. From XRD, NMR and saturation magnetization (Ms) vs. at% Ag, one can conclude that the films consist of Co-Co and Ag-Ag clusters. The coercivity depends on the thickness of the films (100–700 nm) and varies from 5 to 15 kA/m.

AB - Magnetoresistance (MR) measurements at room temperature have been performed on obliquely (co-) evaporated Ag-Co films deposited at room- and elevated-temperatures. The ‘giant’ magnetoresistance ratio (max. 13% for a composition of about Co35Ag65) over a wide range of compositions has been measured. The films are polycrystalline and grown in a columnar morphology. The columnar diameter depends on the thickness and is < 20 nm at 400 nm thickness. From XRD, NMR and saturation magnetization (Ms) vs. at% Ag, one can conclude that the films consist of Co-Co and Ag-Ag clusters. The coercivity depends on the thickness of the films (100–700 nm) and varies from 5 to 15 kA/m.

KW - METIS-112369

KW - EWI-5557

KW - IR-15490

KW - SMI-NE: From 2006 in EWI-NE

KW - SMI-SPINTRONICS

U2 - 10.1016/0304-8853(93)90879-7

DO - 10.1016/0304-8853(93)90879-7

M3 - Article

VL - 128

SP - 219

EP - 228

JO - Journal of magnetism and magnetic materials

JF - Journal of magnetism and magnetic materials

SN - 0304-8853

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ER -