Exchange anisotropy effects in NiFe layers and NiFe/Cr multilayers

K. O'Grady; S. J. Greaves; S. M. Thompson

doi:10.1016/0304-8853(95)00856-X

Exchange anisotropy effects in NiFe layers and NiFe/Cr multilayers

K. O'Grady, S. J. Greaves, S. M. Thompson

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

9 Citations (Scopus)

Abstract

We report on a study of the magnetic properties of NiFe/Cr multilayer systems deposited on Si substrates. A significant shift and an anomalous discontinuity on one side of the hysteresis loop at 4 K are observed. The loops become symmetrical above 15 K. We interpret our data on the basis that the top NiFe layer is partially oxidised and antiferromagnetic leading to an exchange anisotropy within the layer. The effect of a silver layer on the top surface of the multilayer is to prevent the oxidation of the NiFe which causes this effect.

Original language	English
Pages (from-to)	253-254
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	156
Issue number	1-3
DOIs	https://doi.org/10.1016/0304-8853(95)00856-X
Publication status	Published - 1996 Jan 1
Externally published	Yes
Event	Proceedings of the 1995 2nd International Symposium on Metallic Multilayers, MML - Cambridge, UK Duration: 1995 Sept 11 → 1995 Sept 14

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/0304-8853(95)00856-X

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title = "Exchange anisotropy effects in NiFe layers and NiFe/Cr multilayers",

abstract = "We report on a study of the magnetic properties of NiFe/Cr multilayer systems deposited on Si substrates. A significant shift and an anomalous discontinuity on one side of the hysteresis loop at 4 K are observed. The loops become symmetrical above 15 K. We interpret our data on the basis that the top NiFe layer is partially oxidised and antiferromagnetic leading to an exchange anisotropy within the layer. The effect of a silver layer on the top surface of the multilayer is to prevent the oxidation of the NiFe which causes this effect.",

author = "K. O'Grady and Greaves, {S. J.} and Thompson, {S. M.}",

year = "1996",

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doi = "10.1016/0304-8853(95)00856-X",

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journal = "Journal of Magnetism and Magnetic Materials",

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number = "1-3",

note = "Proceedings of the 1995 2nd International Symposium on Metallic Multilayers, MML ; Conference date: 11-09-1995 Through 14-09-1995",

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TY - JOUR

T1 - Exchange anisotropy effects in NiFe layers and NiFe/Cr multilayers

AU - O'Grady, K.

AU - Greaves, S. J.

AU - Thompson, S. M.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - We report on a study of the magnetic properties of NiFe/Cr multilayer systems deposited on Si substrates. A significant shift and an anomalous discontinuity on one side of the hysteresis loop at 4 K are observed. The loops become symmetrical above 15 K. We interpret our data on the basis that the top NiFe layer is partially oxidised and antiferromagnetic leading to an exchange anisotropy within the layer. The effect of a silver layer on the top surface of the multilayer is to prevent the oxidation of the NiFe which causes this effect.

AB - We report on a study of the magnetic properties of NiFe/Cr multilayer systems deposited on Si substrates. A significant shift and an anomalous discontinuity on one side of the hysteresis loop at 4 K are observed. The loops become symmetrical above 15 K. We interpret our data on the basis that the top NiFe layer is partially oxidised and antiferromagnetic leading to an exchange anisotropy within the layer. The effect of a silver layer on the top surface of the multilayer is to prevent the oxidation of the NiFe which causes this effect.

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UR - http://www.scopus.com/inward/citedby.url?scp=0030125032&partnerID=8YFLogxK

U2 - 10.1016/0304-8853(95)00856-X

DO - 10.1016/0304-8853(95)00856-X

M3 - Conference article

AN - SCOPUS:0030125032

SN - 0304-8853

VL - 156

SP - 253

EP - 254

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1-3

T2 - Proceedings of the 1995 2nd International Symposium on Metallic Multilayers, MML

Y2 - 11 September 1995 through 14 September 1995

ER -

Exchange anisotropy effects in NiFe layers and NiFe/Cr multilayers

Abstract

ASJC Scopus subject areas

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