Effect of strain on magnetoresistance and magnetic properties of Co (t Co)/Ag nanostructures

C. Rizal; P. Gyawali; I. Kshattry; Y. Ueda; Ramesh Pokharel

doi:10.1109/NMDC.2011.6155324

Effect of strain on magnetoresistance and magnetic properties of Co (t _Co)/Ag nanostructures

C. Rizal, P. Gyawali, I. Kshattry, Y. Ueda, Ramesh Pokharel

Department of I&E Visionaries

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A series of [Co (t _Co) nm/Ag 1.5 nm] ₅₀ nanostructures was grown using pulse electrodeposition onto polyimide substrates. The magnetoresistance (MR) ratio was examined as the Co layer thickness changed. A strain was induced mechanically, and this resulted in magnetic anisotropy. Magnetization curves were recorded as the strain was changed. The measured degree of magnetic anisotropy best fits linearly with the increase of strain. The MR values for the nanostructure with the field perpendicular to the easy axis and the direction of current are found to be larger than those of the field parallel to the easy axis and the direction of current. A maximum MR ratio of 9.1 % was observed for the [Co 1.5 nm/Ag 1.5 nm] ₅₀ nanostructure. The nanostructures showed remarkable magnetic properties owing to the induced strain.

Original language	English
Title of host publication	2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
Pages	120-124
Number of pages	5
DOIs	https://doi.org/10.1109/NMDC.2011.6155324
Publication status	Published - 2011
Event	2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 - Jeju, Korea, Republic of Duration: Oct 18 2011 → Oct 21 2011

Other

Other	2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
Country	Korea, Republic of
City	Jeju
Period	10/18/11 → 10/21/11

All Science Journal Classification (ASJC) codes

Materials Science(all)

Access to Document

10.1109/NMDC.2011.6155324

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Rizal, C., Gyawali, P., Kshattry, I., Ueda, Y., & Pokharel, R. (2011). Effect of strain on magnetoresistance and magnetic properties of Co (t _Co)/Ag nanostructures. In 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 (pp. 120-124). [6155324] https://doi.org/10.1109/NMDC.2011.6155324

Rizal, C, Gyawali, P, Kshattry, I, Ueda, Y & Pokharel, R 2011, Effect of strain on magnetoresistance and magnetic properties of Co (t _Co)/Ag nanostructures. in 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011., 6155324, pp. 120-124, 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011, Jeju, Korea, Republic of, 10/18/11. https://doi.org/10.1109/NMDC.2011.6155324

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title = "Effect of strain on magnetoresistance and magnetic properties of Co (t Co)/Ag nanostructures",

abstract = "A series of [Co (t Co) nm/Ag 1.5 nm] 50 nanostructures was grown using pulse electrodeposition onto polyimide substrates. The magnetoresistance (MR) ratio was examined as the Co layer thickness changed. A strain was induced mechanically, and this resulted in magnetic anisotropy. Magnetization curves were recorded as the strain was changed. The measured degree of magnetic anisotropy best fits linearly with the increase of strain. The MR values for the nanostructure with the field perpendicular to the easy axis and the direction of current are found to be larger than those of the field parallel to the easy axis and the direction of current. A maximum MR ratio of 9.1 % was observed for the [Co 1.5 nm/Ag 1.5 nm] 50 nanostructure. The nanostructures showed remarkable magnetic properties owing to the induced strain.",

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language = "English",

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T1 - Effect of strain on magnetoresistance and magnetic properties of Co (t Co)/Ag nanostructures

AU - Rizal, C.

AU - Gyawali, P.

AU - Kshattry, I.

AU - Ueda, Y.

AU - Pokharel, Ramesh

PY - 2011

Y1 - 2011

N2 - A series of [Co (t Co) nm/Ag 1.5 nm] 50 nanostructures was grown using pulse electrodeposition onto polyimide substrates. The magnetoresistance (MR) ratio was examined as the Co layer thickness changed. A strain was induced mechanically, and this resulted in magnetic anisotropy. Magnetization curves were recorded as the strain was changed. The measured degree of magnetic anisotropy best fits linearly with the increase of strain. The MR values for the nanostructure with the field perpendicular to the easy axis and the direction of current are found to be larger than those of the field parallel to the easy axis and the direction of current. A maximum MR ratio of 9.1 % was observed for the [Co 1.5 nm/Ag 1.5 nm] 50 nanostructure. The nanostructures showed remarkable magnetic properties owing to the induced strain.

AB - A series of [Co (t Co) nm/Ag 1.5 nm] 50 nanostructures was grown using pulse electrodeposition onto polyimide substrates. The magnetoresistance (MR) ratio was examined as the Co layer thickness changed. A strain was induced mechanically, and this resulted in magnetic anisotropy. Magnetization curves were recorded as the strain was changed. The measured degree of magnetic anisotropy best fits linearly with the increase of strain. The MR values for the nanostructure with the field perpendicular to the easy axis and the direction of current are found to be larger than those of the field parallel to the easy axis and the direction of current. A maximum MR ratio of 9.1 % was observed for the [Co 1.5 nm/Ag 1.5 nm] 50 nanostructure. The nanostructures showed remarkable magnetic properties owing to the induced strain.

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