Swift heavy ion irradiation effects on magnetoresistance of Fe/Cr multilayers

Amitesh Paul; Ajay Gupta; S. M. Chaudhari; D. M. Phase; S. Ghosh; D. K. Avasthi

doi:10.1016/S0168-583X(99)00275-X

Swift heavy ion irradiation effects on magnetoresistance of Fe/Cr multilayers

Amitesh Paul, Ajay Gupta, S. M. Chaudhari, D. M. Phase, S. Ghosh, D. K. Avasthi

Materials Science and Engineering

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

15 Scopus citations

Abstract

Effect of 200 MeV Ag ion irradiation on giant magnetoresistance in Fe/Cr multilayers has been studied. Irradiation is found to modify the interface structure without affecting the morphological features like grain size or texture. The GMR shows a monotonous decrease with irradiation dose, the maximum decrease in GMR being as large as 70% at an irradiation fluence of 1.0×10¹³ ions/cm². It is suggested that intermixing at the interfaces along with changes in the interface roughness due to formation of asperities at the surface of the float glass substrate may be the possible cause of such a large change in GMR with irradiation.

Original language	English
Pages (from-to)	158-161
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	156
Issue number	1
DOIs	https://doi.org/10.1016/S0168-583X(99)00275-X
State	Published - 2 Jul 1999
Event	Proceedings of the 1998 International Conference on Swift Heavy Ions in Materials Engineering and Characterization (SHIMEC-98) - New Dehli, India Duration: 20 Oct 1998 → 22 Oct 1998

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title = "Swift heavy ion irradiation effects on magnetoresistance of Fe/Cr multilayers",

abstract = "Effect of 200 MeV Ag ion irradiation on giant magnetoresistance in Fe/Cr multilayers has been studied. Irradiation is found to modify the interface structure without affecting the morphological features like grain size or texture. The GMR shows a monotonous decrease with irradiation dose, the maximum decrease in GMR being as large as 70% at an irradiation fluence of 1.0×1013 ions/cm2. It is suggested that intermixing at the interfaces along with changes in the interface roughness due to formation of asperities at the surface of the float glass substrate may be the possible cause of such a large change in GMR with irradiation.",

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

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Swift heavy ion irradiation effects on magnetoresistance of Fe/Cr multilayers. / Paul, Amitesh; Gupta, Ajay; Chaudhari, S. M.; Phase, D. M.; Ghosh, S.; Avasthi, D. K.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 156, No. 1, 02.07.1999, p. 158-161.

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

TY - JOUR

T1 - Swift heavy ion irradiation effects on magnetoresistance of Fe/Cr multilayers

AU - Paul, Amitesh

AU - Gupta, Ajay

AU - Chaudhari, S. M.

AU - Phase, D. M.

AU - Ghosh, S.

AU - Avasthi, D. K.

PY - 1999/7/2

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N2 - Effect of 200 MeV Ag ion irradiation on giant magnetoresistance in Fe/Cr multilayers has been studied. Irradiation is found to modify the interface structure without affecting the morphological features like grain size or texture. The GMR shows a monotonous decrease with irradiation dose, the maximum decrease in GMR being as large as 70% at an irradiation fluence of 1.0×1013 ions/cm2. It is suggested that intermixing at the interfaces along with changes in the interface roughness due to formation of asperities at the surface of the float glass substrate may be the possible cause of such a large change in GMR with irradiation.

AB - Effect of 200 MeV Ag ion irradiation on giant magnetoresistance in Fe/Cr multilayers has been studied. Irradiation is found to modify the interface structure without affecting the morphological features like grain size or texture. The GMR shows a monotonous decrease with irradiation dose, the maximum decrease in GMR being as large as 70% at an irradiation fluence of 1.0×1013 ions/cm2. It is suggested that intermixing at the interfaces along with changes in the interface roughness due to formation of asperities at the surface of the float glass substrate may be the possible cause of such a large change in GMR with irradiation.

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VL - 156

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EP - 161

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

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Y2 - 20 October 1998 through 22 October 1998

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