Effect of interface structure correlation on magnetoresistance of Fe/Cr multilayers

Amitesh Paul; Ajay Gupta; S. M. Chaudhari; D. M. Phase

doi:10.1016/s0042-207x(00)00224-4

Effect of interface structure correlation on magnetoresistance of Fe/Cr multilayers

Amitesh Paul^*, Ajay Gupta, S. M. Chaudhari, D. M. Phase

^*Corresponding author for this work

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

29 Scopus citations

Abstract

Effect of interfacial roughness on giant magnetoresistance (GMR) in Fe/Cr multilayers has been studied. A set of samples is prepared by simultaneously depositing on a set of float-glass (FG) substrates with varying rms surface roughness. This causes the correlated part of the rms roughness to vary from sample to sample. Another set of specimen is irradiated with 200 MeV Ag ions in order to induce uncorrelated roughness at the interfaces. In both the cases morphological and other microstructural features of different multilayers remained similar, thus allowing one to separate the effect of interface roughness from that of morphological changes. GMR measurements on these multilayers show that increasing interfacial roughness causes GMR to decrease nonlinearly. It is found that the effect of uncorrelated part of the roughness is much stronger than that of the correlated part.

Original language	English
Pages (from-to)	401-405
Number of pages	5
Journal	Vacuum
Volume	60
Issue number	4
DOIs	https://doi.org/10.1016/s0042-207x(00)00224-4
State	Published - Mar 2001
Externally published	Yes

Keywords

Giant magnetoresistance
Interface structure and roughness
Magnetic films and multilayers

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10.1016/s0042-207x(00)00224-4

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title = "Effect of interface structure correlation on magnetoresistance of Fe/Cr multilayers",

abstract = "Effect of interfacial roughness on giant magnetoresistance (GMR) in Fe/Cr multilayers has been studied. A set of samples is prepared by simultaneously depositing on a set of float-glass (FG) substrates with varying rms surface roughness. This causes the correlated part of the rms roughness to vary from sample to sample. Another set of specimen is irradiated with 200 MeV Ag ions in order to induce uncorrelated roughness at the interfaces. In both the cases morphological and other microstructural features of different multilayers remained similar, thus allowing one to separate the effect of interface roughness from that of morphological changes. GMR measurements on these multilayers show that increasing interfacial roughness causes GMR to decrease nonlinearly. It is found that the effect of uncorrelated part of the roughness is much stronger than that of the correlated part.",

keywords = "Giant magnetoresistance, Interface structure and roughness, Magnetic films and multilayers",

author = "Amitesh Paul and Ajay Gupta and Chaudhari, {S. M.} and Phase, {D. M.}",

year = "2001",

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doi = "10.1016/s0042-207x(00)00224-4",

language = "英语",

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journal = "Vacuum",

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TY - JOUR

T1 - Effect of interface structure correlation on magnetoresistance of Fe/Cr multilayers

AU - Paul, Amitesh

AU - Gupta, Ajay

AU - Chaudhari, S. M.

AU - Phase, D. M.

PY - 2001/3

Y1 - 2001/3

N2 - Effect of interfacial roughness on giant magnetoresistance (GMR) in Fe/Cr multilayers has been studied. A set of samples is prepared by simultaneously depositing on a set of float-glass (FG) substrates with varying rms surface roughness. This causes the correlated part of the rms roughness to vary from sample to sample. Another set of specimen is irradiated with 200 MeV Ag ions in order to induce uncorrelated roughness at the interfaces. In both the cases morphological and other microstructural features of different multilayers remained similar, thus allowing one to separate the effect of interface roughness from that of morphological changes. GMR measurements on these multilayers show that increasing interfacial roughness causes GMR to decrease nonlinearly. It is found that the effect of uncorrelated part of the roughness is much stronger than that of the correlated part.

AB - Effect of interfacial roughness on giant magnetoresistance (GMR) in Fe/Cr multilayers has been studied. A set of samples is prepared by simultaneously depositing on a set of float-glass (FG) substrates with varying rms surface roughness. This causes the correlated part of the rms roughness to vary from sample to sample. Another set of specimen is irradiated with 200 MeV Ag ions in order to induce uncorrelated roughness at the interfaces. In both the cases morphological and other microstructural features of different multilayers remained similar, thus allowing one to separate the effect of interface roughness from that of morphological changes. GMR measurements on these multilayers show that increasing interfacial roughness causes GMR to decrease nonlinearly. It is found that the effect of uncorrelated part of the roughness is much stronger than that of the correlated part.

KW - Giant magnetoresistance

KW - Interface structure and roughness

KW - Magnetic films and multilayers

UR - http://www.scopus.com/inward/record.url?scp=0035283284&partnerID=8YFLogxK

U2 - 10.1016/s0042-207x(00)00224-4

DO - 10.1016/s0042-207x(00)00224-4

M3 - 文章

AN - SCOPUS:0035283284

SN - 0042-207X

VL - 60

SP - 401

EP - 405

JO - Vacuum

JF - Vacuum

IS - 4

ER -

Effect of interface structure correlation on magnetoresistance of Fe/Cr multilayers

Abstract

Keywords

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